Update registration.md

Added information on registration costs

_coffinsincontext/registration.md

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-Conference registration opens in November 2023, but expressions of interest are welcomed immediately. 
+Please use **[this form](https://forms.gle/PmZZAsfGHCsqaYCT8)** to register your interest. Please note that, although **the deadline for submission of abstracts has now passed**, we are still happy to receive expressions of interest.
 
-Please use **[this form](https://forms.gle/PmZZAsfGHCsqaYCT8)** to register your interest. Please note, however, that **the deadline for submission of abstracts has now passed**.
+Conference registration will open in November 2023. Registration fees will be as follows: 
 
-Conference fee information will be posted here soon. 
+## In-person registration fees [^1]
+*NB:* one author per paper, poster or short-form talk may register free of charge (paper) or at a reduced rate (poster or short-form talk). 
+
+### Author of paper/poster/short-form talk
+- _One author_ per paper: £0
+- _One author_ per poster/short-form talk £75
+### Non author
+- Non-Egyptian full price: 	£200
+- Non-Egyptian reduced price (unwaged, etc.):	£75
+- Egyptian reduced price:  £75
+
+## Remote registration fees
+
+- Non-Egyptian price:  £40
+- Egyptian price:  £15
+
+[^1]: We will be offering bursaries to enable up to 9 Egyptian colleagues to participate in person, which will cover the costs of registration, flights, accommodation and visa fees.