I'm having issues accepting an invite to access TestFlight. I may have tried multiple attempts due to my existing email address not being accepted, so I had to create a new email that's not linked to Apple yet and put it in the activation form.
However, now I am getting an error, "Verification codes can't be sent to this phone number at this time. Please try again later." This has been an error since yesterday and the resend, verification via call, and text are all not working. I also tried a different phone number and same issue.
Can someone help on this, please.