Horrific customer experience

I purchased an L shape couch and 2 occasional chairs from Clearance Warehouse Newton, the manager Thabiso explained that delivery will take place in 3 to 4 weeks, I agreed to the terms. 3 weeks later I followed up with Thabiso and he promised to come back to me but he didn't, 2 days later I sent him a whatsapp on the company line and was blue ticked. I followed up again a couple of days and was blue ticked again, I then decided to call the store and demanded to speak to someone, but my effort were again in vain the lady that answered my call promised to get back to me, to date noone has made contact. I then sent another message to Thabiso requesting cancelation due to bad service received he responded and asked for another week to make delivery, I agreed to his request and followed up on Friday, Saturday and Sunday no response received , I then requested for his managers details and his response was that he does not know the owners of clearance warehouse. 4 weeks later with no couches Thabiso informs me that he has submit my refund request to headoffice and that it will take 30 days for my request to be refunded. Is this refund going to come with interest? What about my time that's been wasted, my aitrtime and data? This is totally unacceptable I want my money today so that I can go to a more reliable store!!!! Because clearance warehouse doesn't care about customer service.