Make enterprise admin match case insensitive

corehq/apps/accounting/models.py

@@ -532,7 +532,8 @@ def get_domains(self):
                     'subscriber__domain', flat=True))
 
     def has_enterprise_admin(self, email):
-        return self.is_customer_billing_account and email in self.enterprise_admin_emails
+        lower_emails = [e.lower() for e in self.enterprise_admin_emails]
+        return self.is_customer_billing_account and email.lower() in lower_emails
 
     def update_autopay_user(self, new_user, domain):
         if self.auto_pay_enabled and new_user != self.auto_pay_user:

corehq/apps/accounting/tests/test_models.py

@@ -3,6 +3,7 @@
 
 from django.core import mail
 from django.db import models
+from django.test import SimpleTestCase
 
 from unittest import mock
 
@@ -343,3 +344,9 @@ def test_unset_autopay(self, fake_customer):
         self.assertEqual(self.fake_card.metadata, {"auto_pay_{}".format(self.billing_account.id): 'False'})
         self.assertIsNone(self.billing_account.auto_pay_user)
         self.assertFalse(self.billing_account.auto_pay_enabled)
+
+
+class SimpleBillingAccountTest(SimpleTestCase):
+    def test_has_enterprise_admin_does_case_insensitive_match(self):
+        account = BillingAccount(is_customer_billing_account=True, enterprise_admin_emails=['[email protected]'])
+        self.assertTrue(account.has_enterprise_admin('[email protected]'))