Cannot get my expired contracts cancelled

I have been trying to cancel my expired contracts for months ,since before the strike 808 just cut you off. Today I was on hold for 808 for 40mins and gave up. Please can Mtn tell me wat they think is a decent time to hold on,I drove 40km to aMtn store to get the contracts cancelled they refer you to 808. I have spent hours holding on 808 I sent e mails but nothing. It is unfair to deduct the full amount since the laptop is paidoff intact the last deduction was for 290 wich is 40 more than the contract the SIM cards is not being used...<br> <br> HOW CAN I TERMINATE THESE CONTRACTS Please Mtn tell me how ,