lost prepaid SIM?

I lost my phone last week-end and of course my pre-paid SIM went with it. I want to get my account going, but I’m not sure what’s the best thing to do. Can I buy a pre-paid S.I.M. card and transfer my account over? If I do so will I be able to keep the balance of the new card and what was on the old one? Or, can I buy a post-paid SIM and still have my info transferred to it? Any suggestions?

What you can do is to buy unactivated T-mo SIM card and then call them to update the ICCID (SIM serial number) for your account. Once you’ve done so, your phone number and current balance will be transferred over to the new SIM.