No feedback- Customer Service Non-existent

I bought a UPS online in September when we were experiencing stage 6 loadshedding. It was delivered very quickly but it didn't work as it should- I immediately tried to log a return on the website but I couldn't. This was within 48 hours of receiving it. There were technical issues when trying to lob a return. I then contacted their customer services via email for assistance- it was a long four weeks of follow-ups and reminders but someone was eventually sent to my house to pick up the item. It has now been 3 weeks since the UPS was taken and I have had no feedback whatsoever. I sent an email, but there was no response. I purchased the UPS on the 21st of September, it is the 14th of November today and I don't really know where I stand. I have spent money on something that I haven't benefited from. It has been a painful process trying to get assistance from Waltons. This is truly the worst customer service I have ever experienced. I will never buy anything again from this company.