No aftersales service and false advertising on products

I live in a small town which doesn't have an @home within 200km of it. I bought 600tc Egyptian cotton bedding online which is advertised to have a 6month guarantee/warranty as per their website. The one pillow case tore at the seam within 3 days of using it. I have had cheaper bedding with no guarantee or warranty that have lasted longer. I immediately logged a online ticket only to be told they have no current returns system for online sales I must return the product in store myself. This set cost over R2200. I explained there is no store close to me their only solution is to return the full set and I must then purchase it again. I was also told I have a month from purchase date to return this. It took a week and 3 requests to get an unsatisfactory answer from them. With the week I have had it and the over week it took to respond I have just 2 weeks left to find a returns solution. How is this a 6month guarantee/warranty if I have a month from purchase date? False advertising from this store. This was clearly a factory quality issue as it's at the seam. I would expect a replacement pillow case to be sent and this one collected. As that's what I understand a guarantee and warranty to be.(their website has guarantee and warranty on this item) after sales service is appalling and outdated. We will now just be keeping this reject item to avoid the inconvenience and cost of driving to a store as we don't want to wait more than a month to have this returned and a new set delivered. But I will because of this never purchase anything from any @home store again. I can purchase on many other sites with no issues or inconvenience like this. Plenty of other stores offer online purchase support and returns. @home shouldn't offer services they cannot support.