So sorry about your lost sim. This happened to me about 2 weeks ago, and below is the message from MTN Customer Care when I contacted them. They will also send you a sim swap...
Ever since I entered UK in Oct 4, there's no MTN signal in my phone, Pls help me. This is the phone number: 0803 282 9884. I even subscribed to roaming bundle twice , yet no MTN...
Hi Ubong, you need to roam your line with any of the MTN preferred roaming partners in UK. You can roam with Vodafone or Telefonica O2.
Just power off and power on your phone...
