Poor service, *********** Services, ***** company

I once paid a R1000 to Zonefitness instead of Nimble group, so they advised me to be in contact with the gym to find a way forward. So, when I called the Gym they did per my request and forwarded it to Nimble group this happened last year November, since then Nimble has not done anything about this and every time I call it takes a long time to get through to them. The whole of December, January and February I have been calling them in regards to the matter but still no one has no straight answer as to why the R1000 was not deducted on their side.

Also, my other issue is that my account balance keeps accumulating according to them because I pay via Boxer store. So the last time I called they told me I owe R6789,38 but when I check the statement The amount is R6196,89.