Question about registration and GPT plus

I registered with a phone number and an email.

I changed my phone plan and then got ChatGPT plus.

I now know that I can’t change my phone number for my account

I want to be able to use 2 factors auth so I can use the plugins in GPT4

If I create a new account with the new phone number, am I going to have to pay 20 dollars again just because I can’t change my number?