Worst customer services No service at all

OK so long story short we moved they then said I Qualify for 5G internet I then changed they delivered the router and activated the 5G and canceled my 4G without making sure the 5G is working wich it wasn't so I had to purchase another Sim and activate still waiting to this day for my refund on the 5G package that was in October 2021 so eventually I paid without hesitation R898 for October and November of 2021 and somehow the payment didn't go through for the December invoice now the say I also didn't pay for november and claim R958 to restore my services and they don't listen to my end of the story I am willing to pay for December's payment wich was missed apparently but I am not willing to pay for services not used I hope the sort this mess out