contract cancellation is a nightmare

MTN service is pathetic ,they phone you numerous times offering contracts and wanting you to upgrade your contract but to try and get assistance from them regarding your contract they of no help and are extremely hard to get hold of.........instore and customer care advised me to phone 808 a month in advance to cancel my contract .....however for the last three days i've called and no answer eventually today after an hour the retention department finally picked up the phone then i was advised to phone a day after my contract ends inorder to cancel the contract. MTN is a big company who needs to train their staff to advise people accordingly and instead of phoning people to renew contracts several times they should employ more people in the retentions department......i was advised to phone after my contract expires then they will probably tell me its to late to cancel and i should pay a cancellation fee.........not to mention their staff is extremely rude