Good morning vgadde.
I was able to verify that since you have only had your prepay account/ number for 2 months, you will not be able to keep the same number if you switch to postpay. You are only able to switch from Prepay to Postpay and keep your same number if you have had your prepay number for at least 6 months. Therefore, you will be able to switch if you get a new number, or you can keep the prepay account for another 4 months to complete the 6 month requirement. Below I have provided you with additional requirements.
If and when the requirements are met, you can call our Telesales Department at 800-256-4646, and complete the process.