Afrihost double bills and refuses to pay back

Shocking service from Afrihost Account/Fibre team who double billed me for my Fibre installation. The invoices is clear that this has happened - they have even agreed that they have double billed me but they won't put the money back into my account! Instead they have credited my wife's business account who has a totally different business and obviously a completely different bank account and even banks at a different bank. But it get worse... As she only has an email account with them they credit her R29 a month - so if I have to get my money back I need to wait almost three years to get my money back and I will need to get my wife to transfer the funds into my account - an accountants nightmare. I have asked numerous times to simply pay back the money or credit the funds to the same bank account that they "Stole" from. (I use the word stole as they have taken it and are refusing to pay it back) I have been fighting this for 5 months. At no stage have they apologised for their mess up nor any effort to correct it. Unbelievably shocking service. Now I have to waste more time exploring "Small Claims Court" to get my money back. I am also still waiting for Afrihost to sort out my fibre cable with sticks out of my garden lawn - which looks awful and and is a safety hazard.