diff --git a/config/surveyhero.php b/config/surveyhero.php
index 772a03f..75d27e3 100644
--- a/config/surveyhero.php
+++ b/config/surveyhero.php
@@ -96,6 +96,7 @@
         [
             'survey_id' => 1234567,
             'collectors' => [9876543], //optionally, see https://developer.surveyhero.com/api/#collector-api
+            'use_resume_link' => false,
             'questions' => [
                 1000001 => [
                     'question_id' => 1000001,
diff --git a/database/migrations/create_surveyhero_tables.php b/database/migrations/create_surveyhero_tables.php
index 9a715c2..0d6955a 100644
--- a/database/migrations/create_surveyhero_tables.php
+++ b/database/migrations/create_surveyhero_tables.php
@@ -22,6 +22,7 @@ public function up()
             $table->json('collector_ids')->nullable();
             $table->json('question_mapping')->nullable();
             $table->datetime('survey_last_imported')->nullable();
+            $table->boolean('use_resume_link')->default(false);
 
             $table->timestamps();
         });
@@ -35,6 +36,7 @@ public function up()
             $table->string('survey_language')->nullable();
             $table->boolean('survey_completed')->default(false);
             $table->json('surveyhero_link_parameters')->nullable();
+            $table->string('resume_link')->nullable();
 
             $table->foreignId($tableNames['surveys']['foreign_key'])
                 ->constrained($tableNames['surveys']['name'])
@@ -63,7 +65,7 @@ public function up()
                 ->constrained($tableNames['survey_questions']['name'])
                 ->onDelete('cascade');
             $table->bigInteger('surveyhero_answer_id')->nullable();
-            $table->string('converted_string_value')->nullable();
+            $table->text('converted_string_value')->nullable();
             $table->integer('converted_int_value')->nullable();
             $table->json('label')->nullable();
             $table->timestamps();
diff --git a/database/migrations/create_unique_surveyhero_id_indices.php b/database/migrations/create_unique_surveyhero_id_indices.php
index 8c9269a..b81c520 100644
--- a/database/migrations/create_unique_surveyhero_id_indices.php
+++ b/database/migrations/create_unique_surveyhero_id_indices.php
@@ -27,8 +27,7 @@ public function up()
         });
 
         Schema::table($tableNames['survey_question_responses']['name'], function (Blueprint $table) {
-            $table->unique(['survey_response_id', 'survey_question_id', 'survey_answer_id'])
-                ->name('survey_question_responses_ternary_ids_idx'); //for some dbs the id name generated by laravel is too long
+            $table->unique(['survey_response_id', 'survey_question_id', 'survey_answer_id'], 'survey_question_responses_ternary_ids_idx'); //for some dbs the id name generated by laravel is too long
         });
     }
 }
diff --git a/src/Contracts/SurveyContract.php b/src/Contracts/SurveyContract.php
index 6fc19f7..ae8d938 100644
--- a/src/Contracts/SurveyContract.php
+++ b/src/Contracts/SurveyContract.php
@@ -13,6 +13,7 @@
  * @property Carbon|null $survey_last_imported
  * @property Carbon $created_at
  * @property Carbon $updated_at
+ * @property boolean $use_resume_link
  * @property Collection $surveyResponses
  * @property Collection $surveyQuestions
  */
diff --git a/src/Http/SurveyheroClient.php b/src/Http/SurveyheroClient.php
index b5f6fcd..3155167 100644
--- a/src/Http/SurveyheroClient.php
+++ b/src/Http/SurveyheroClient.php
@@ -77,6 +77,13 @@ public function getSurveyLanguages(string|int $surveyId): array
         return $languages ? $languages->languages : [];
     }
 
+    public function getResumeLink(string|int $surveyId, string|int $responseId): ?string
+    {
+        $resumeData = $this->fetchFromSurveyHero("surveys/$surveyId/responses/$responseId/resume");
+
+        return $resumeData->successful() ? json_decode($resumeData->body())->url : null;
+    }
+
     public function listWebhooks(string|int $surveyId): ?array
     {
         $webhookData = $this->fetchFromSurveyHero(sprintf('surveys/%s/webhooks', $surveyId));
@@ -145,11 +152,11 @@ private function postToSurveyHero(string $urlPath, array $queryStringArgs = []):
 
         $this->updateThrottle();
 
-        if ($response->successful()) {
-            return $response;
+        if (!$response->successful()) {
+            throw new \Exception($response->body());
         }
 
-        throw new \Exception($response->body());
+        return $response;
     }
 
     /**
@@ -178,7 +185,7 @@ private function preventThrottle(): void
         if (Cache::has(self::CACHE_LATEST_REQUEST_TIME_KEY)) {
             //usleep is in microseconds, 1000000 is 1s.
             //Surveyhero only allows 2 requests per second.
-            $sleepTime = 1000000 - (Carbon::now()->getTimestampMs() - Cache::get(self::CACHE_LATEST_REQUEST_TIME_KEY)) * 1000;
+            $sleepTime = abs(1000000 - (Carbon::now()->getTimestampMs() - Cache::get(self::CACHE_LATEST_REQUEST_TIME_KEY)) * 1000);
             usleep($sleepTime);
         }
     }
diff --git a/src/Services/Info/ResponseImportInfo.php b/src/Services/Info/ResponseImportInfo.php
index c4f5d6b..e241eff 100644
--- a/src/Services/Info/ResponseImportInfo.php
+++ b/src/Services/Info/ResponseImportInfo.php
@@ -51,7 +51,7 @@ public function addUnimportedQuestion(int $questionId, string $errorInfo): void
         $this->unimportedQuestions[$questionId] = $errorInfo;
     }
 
-    public function increateTotalResponses()
+    public function increaseTotalResponses()
     {
         $this->totalResponsesImported++;
     }
diff --git a/src/Services/SurveyImportService.php b/src/Services/SurveyImportService.php
index 670ab44..85aaeb8 100644
--- a/src/Services/SurveyImportService.php
+++ b/src/Services/SurveyImportService.php
@@ -37,10 +37,17 @@ public function importSurveys(?Collection $surveyIdsToImport): array
 
     public function updateOrCreateSurvey(\stdClass $surveyheroSurvey): SurveyContract
     {
+        //check if the config has settings for this survey:
+        $questionMapping = collect(config('surveyhero.question_mapping'));
+        $surveyConfig = $questionMapping->filter(function ($elem) use ($surveyheroSurvey) {
+            return $elem['survey_id'] == $surveyheroSurvey->survey_id;
+        })->first();
+
         return app(SurveyheroRegistrar::class)->getSurveyClass()::updateOrCreate([
             'surveyhero_id' => $surveyheroSurvey->survey_id,
         ], [
             'name' => $surveyheroSurvey->title,
+            'use_resume_link' => data_get($surveyConfig, 'use_resume_link', false),
         ]);
     }
 }
diff --git a/src/Services/SurveyResponseImportService.php b/src/Services/SurveyResponseImportService.php
index 2b7ec81..e36a5a1 100644
--- a/src/Services/SurveyResponseImportService.php
+++ b/src/Services/SurveyResponseImportService.php
@@ -121,7 +121,7 @@ public function importSurveyResponse($responseId, SurveyContract $survey, ?array
                 }
             }
 
-            $importInfo->increateTotalResponses();
+            $importInfo->increaseTotalResponses();
 
             //increase survey last updated timestamp:
             $responseLastUpdatedOn = $this->client->transformAPITimestamp($responseAnswers->last_updated_on);