Need help with getting my phone number to be accepted for signup

I understand that this isn’t support, but I’m wanting to put this out there because I’m really going through a hard time trying to get a hold of people- I am really need my phone number to be unblocked and allowed to be used for creating another account because the account that I currently am using for some reason whenever I try to reset my password my email doesn’t deliver any of the support emails. I really really need help from Support and it’s scaring me because I use this for just about everything.