Worst customer service experience

RCS is by far the worst company when it comes to helping customers.When you call in they say "let's make it possible" it should be LET'S NOT MAKE IT POSSIBLE. I've been struggling for four weeks now to get someone to help me sort out my account for a problem that they created. The problem is if I give them my card number my account comes up but when you go into the account another person's details appear and for the last four weeks now I've been calling them to get assistance and so far no one is able to correct this error. I spend almost R1000 in airtime calling them twice a week to follow-up with no success. On top of me calling them to get this sorted there collections department is calling me for payment I made a payment but my payment is reflecting on this other person's account. I thought home affairs gives bad customer service but RCS Group proved me wrong. I