I cannot use the GitHub Student Pack

I previously used an offer on AppWrite while eligible for the GitHub Student Pack, but I accidentally deleted that account. In this case, can I use a new offer to access AppWrite again? My GitHub Student Pack is still active.

I tried signing up on GitHub again, but it keeps returning:
/login?error=%7B“message”%3A“There was an error processing your request. Please check the inputs and try again.”%2C“type”%3A“general_bad_request”