Horrible service from Vodacom

I have paid my vodacom acc at the end of July via the vodacom app, vodacom claims that my acc is still in arrears after I have sent them proof of payment more then once with my acc number also attached, they still claim that its unpaid and every agent that I talk to on the phone is not able to pick up my payment or help me, my airtime is also disappearing ,what now, I have been a loyal vodacom customer for over 10 years and this is the service that I get from them.I am seriously ****ed off and so gatvol that I am considering moving over my whole family to another network in any way cos vodacom have become so expensive that it becomes impossible to do the normal things we use to do on our devices. People think twice and do your homework before you join Vodacom.