cant get through to the insuarance department

good day, <br> i have sent my phone to mtn fairland for a repair, after a week i tried to contact mtn insurance to make a follow up however when i dial the number they re always having a technical problem this is being months now. its unacceptable because the system doesn't have problem when comes to our account to be debited. <br> i need my phone to be repaired asap, and get contacted as no one can answer the call such a big company they re struggling to take responsibility of the client query to be solved urgently , they decide not to speak to client and pretend as if all is well, i cant get through to the insurance department to know how far are they with my phone. <br> i would like to be contacted on *** or ***