USA Prepaid e-SIM - Choose a new plan for another trip

Hi,

I bought and activated an USA Prepaid e-SIM for a trip to NYC in April via the T-Mobile Prepaid eSIM app and everything worked fine.

Now, I plan to visit the States again in July and would like to re-use this Prepaid e-SIM number (I just don’t want to create a new account with a different mail address each time 😅).

How can I refill the account and choose a new plan accordingly? It seems I need to login to a T-Mobile Account, but everytime I want to create one it says the phone number is incorrect.

Is this even possible or is this prepaid number a one-time number that gets deactivated after the first chosen plan runs out?

Thank you in advance.