Y'ello, sorry about the loss of your SIM card. To retrieve your lost SIM, kindly visit any MTN outlet with your NIN/NIN slip, a valid ID, the lost SIM pack, or a sworn affidavit and the sim registration details. Please note that the NIN slip can also serve as a valid ID. The welcome back SIM cost N100. Any additional fee will be credited to your line as airtime. You can dial *123*7*1# to see the office close to you or please click on the link below https://www.mtnonline.com/personal/find-a-store/. ~BO
