Used phone issue with activation

[JMan111]

My phone was stolen, I bought a used iPhone 5 and I tried activating it, and on the Verizon website it says it's activated, but on the phone it's still the old owner's number and account...what to do??? Thanks.

[Weth]

Have you shut down the phone completely? Have you taken out the SIM and put it back in? How did you activate the phone?