MTN CONTACT ME URGENTLY

Trying to cancel a contract. No numbers work. No emails answered. Honestly a ****. Constantly dialling numbers and once you enter that you want to cancel the line goes dead. I’m a surgeon, I recently shifted to a different hospital and need to be contacted at home while I’m on call. MTN has no coverage in my house and I’m missing calls from the hospital. UNNACEPTABLE. Someone needs to contact me ASAP to cancel this contract so I can switch to a service provider with adequate coverage where I live.