Short payment of refund

This is the straw that broke the camel's back..Rochester Furniture, I have never in my life dealt with so many problems concerning a furniture retail store. I am flabbergasted at the nonchalance attitude you people actually do business. Where do I start with all the **** I have had to endure during the past 6 weeks... First it was the delivery of the incorrect couches, then there was the damage caused to our complex worth thousands of rands, then it was my supposed new couches being delivered on Friday last week and that was also cancelled by someone and now the final straw is paying me a R1000 short of the refund. How the hell can you charge me for delivery costs and scotch guarding when I haven't even received my flipping couches? Why am I being penalised for Rochester's negligence and incapability of delivering what was promised? Jonathan from the Northgate store is the ONLY person that has been jumping through hoops to assist me and yet the incompetence of upper management is abominable. I have now phoned a few people today and nobody is answering my calls...