MTN is the worst Service Provider EVER!!!

<p>In March 2016 I switched banks and i phoned call center and changed my banking details, i told them NOT to debit my old account, which they did , so i paid it EFT, April comes and they debited my old account again! i phoned call center and told them to please cancel my debit order i will pay it in EFT from now on!! Ever since they debited the old account i have been getting sms'es to say that my outgoing facilities will be suspended if i don't pay R787 immediatly,and 2 days after that my outgoing calls get suspended then i have to go to an MTN store to get this activated - and they cant even tell me why according to them am i outstanding... then a week after that i get another sms to say i need to pay the amount outstanding to avoid full service suspension!!! this happens twice a month from March! And now i'm fed up, my service has been suspended for the past 2 weeks already, and now they say that i need to pay R525 to avoid legal actions!! and they even charged me for the RD on my old account.. MTN i pay my account more then i should so if you think i still need to pay anything please do your recons and calculations and give me proof!!! i dont have time to go in store and wait there for an hour . this is really the worst switch that i ever did, i should have stayed with vodacom!!! </p>