Payment by Invoice

Hi guys, I registered for L1 exam in May 2021 and choses to pay by invoice, which I have done so via online wired transfer, and have emailed to CFAI and also faxed the relevant documents to them.

CFAI still hasn’t return to me and it’s starting to stress me out since the early bird deadline is coming soon (3rd Nov) and I really don’t want to miss out on it. I tried calling CFAI but I can’t get through. Any advice to ease my stress?