Bad service

I Have had an MTN account for 10 years, we have always paid the account at the Lydenburg branch each month, then the rules changed and we had to make payments at the bank because they don't accept cash in the branch anymore, because it is soooooo time consuming to stand in ques at the bank every month I skipped payments a few times, explaining to the consultant the reason for not paying. My account was given over to the attorneys last year. I paid the account finished about 3 months back, and up until today I can not get hold of their accounts department to confirm that there is nothing outstanding. Their customer care number you either hold for more than 10 minutes and then it disconnects it self. their is also no alternative numbers available. I cant believe a company this big is so hard to get hold of. The service is terrible!!!