When you first signup with TelTel you will only be charged your selected pre-paid top-up amount on the signup form.

On the first week of each month (within 10 days) you will be charged your monthly fee in advance. E.g. $32.50 per month.

Isn’t this taken out of my pre-paid credit?

No, your monthly fee is separate from your prepaid credit. Your prepaid credit is available to cover any calls or services that are not included in your monthly billing package and is refundable at any point should you cancel your account.