Service does not match promise or quality of Stressless

In January we decided to buy some Stressless furniture (2 x sofas, 1 x chair, 2 x footstools) - which had been a long term ambition. We went to various stockists and ended up buying at Wharfside and wished we hadn't. When the furniture arrived it was minus two footstools and no-one gave us any warning that this was the case.
When the delivery was made the delivery team expressed surprise and dislike of the fact that the delivery was up two flights of stairs, despite the fact that this had been explained to the salesman and I had even gone to the trouble of measuring all the hallways and stairs to make sure they could get the furniture into the building and up to our flat.
Furthermore, prior to the agreed delivery date I had emailed them to say I would be out of the country and would effect payment by bank transfer rather than paying via card on the day of the delivery. The delivery supervisor got angry on the phone with my wife and despite having been told I was abroad then phoned me on my mobile to complain that they had not been paid. He got quite shouty and aggressive which is not a good way to deal with customers who have spent a lot of money with you. He also expected (demanded) full payment but I said I would withhold payment for the footstools until they were delivered. I made the adjusted payment by bank transfer the next day on my return to the UK as I had agreed to do.
The following week I made my dis-satisfaction with the whole thing known to the salesman who promised to call me back with more details on the footstools. Despite him promising to call me back personally the assistant called me which suggests a lack of integrity or willingness to deal with any sale already made. She said they would do everything possible to make me a satisfied customer, I said that in order to do that they should discount the footstools. When I pursued this line I was told this can't be done.
The footstools did arrive within a couple of weeks but the whole experience turned buying a high end, luxury item (Stressless furniture), from a pleasure into a pain. My impression of Wharfside is that they are a slick sales operation with poor customer service. My recommendation is go there to see a good range of Stressless, decide what you want and then get written quotes - you will get Stressless cheaper & with much better service.
The Stressless product is a superb, high-end product. The quality of the product should be matched by the quality of the service but Wharfside don't understand this.