Worst service Vodacom

This is the worst experience with vodacom. Vodacom blacklisted my phn because I was in errors, the time they say I was in errors in strange because it was in the middle of the month and l had already paid. So I went I paid R800, and still its blacklisted and my network is not working 7 days later and l am being told different stories. MY phone is still not working my account is not in arreas. Can Vodacom please fix this