Hi Julius, to block your line, you need to contact any MTN customer care support
find below MTN Nigeria Contact Channels.
1. MyMTN App
2. Facebook: @MTNLoaded
3. Instagram...
My phone was stolen today in Houston Texas, USA. Kindly block and hold my SIM till I come back to Nigeria.
Below are my details
Name: Opara Pascal
SIM#: 08161554644
Hi Aliyullahi, I depends on the type of blocking on your line. If you requested for your line to be blocked due to stolen phone issue, you can only unblock the line at any MTN...