I totally get your concern about missing out after changing your number. What helped me was notifying the organizers about my number change just to be safe. They were really understanding and updated their records. It's always good to keep those lines of communication open. Also, you can use a phone number generator with sms yet to register in the apps you need. I hope that helps!
-- Edited by SaymonSax on Tuesday 15th of August 2023 09:23:30 AM