Very ****ed off!

I paid my account up and the balance was R2,628.77 as I had cancelled my fibre to the home line and received paid up letter as agreed.I made a mistake of over paying my account by R568.23.I called their call center and sent my proof of payments and I was advised that I would get my refund back in my account within 48 hours,four days later I am still waiting and according to their call center agents the case was logged as to when will I get my money only Lord knows!The most annoying part is that I had to call four times just to get this case logged and resend the same proof of payments about three times to three different people who all had three different answers to when will I be refunded and the most interesting part is that you can't call their finances department whom are the people dealing with ones query.It's safe to say that I am glad I cancelled my line because if this the type of services one gets I am glad I am no longer one of their customers.As for their social media team they are very excellent to deal with it's a pity the finance department didn't not attend the same customer service training with the rest of the stuff and yet they are so quick to send your details to creditors if you don't pay on time and very slow to act if you want help from them.