Mweb service is horrible

I have a lte package with mweb and they have disconnected me however I tried calling in a number of times to advise my debit date changed. I spoke to a consultant last week Friday and he advised me he will reconnect my service and change the debit to 15th of each month yet nothing has been done and when I sent an query 4 days ago I still have not received a response. Please change my debit date to 15th and reconnect me as I know you guys offer a grace period!! The consultant confirmed this as well. I can't keep calling in and holding for 20 minutes just to get cut off again.