Pending Refund and Pathetic Customer Service

Cancelled my subscription with home connect because of there putrid customer service , and paid the cancellation fee of R1750. Then they deducted an additional R776.00 for the router they supp****. I phoned them and told them they can have there router back as I have 3 spares , they said that is fine , I can send the router back and they will refund me for the router deduction. I shipped the router back on Monday , and confirmed they received it on Tuesday. Today is Friday and i still have not received my refund for the router. Home Connect you are the most pathetic ISP (Customer service) I have ever come across in my 15 years of doing IT and dealing with various ISP's. People I would definitely not recommend using Home Connect as your ISP, You will have endless problems with there customer service, and let me not say that if you are with Home connect and you have internet problems after hours or over the weekend , forget about getting hold of them , wait till the morning or Monday to contact them to get your issue resolved. Home Connect , Can I please have my refund. Thank You