B & Q / Terrible company

Bought a shower bath and glass door with side panels in the so called sales - supposedly had 50% off the original price - well that was written on the price ticket at the time. Had lots of problems with delivery (too many to mention). On one of our many revisits to the shop concerning these problems we noticed that the bath and glass door had (only a few days after the end of the sale) gone unbelievably down to a price lower than we paid in the sales (when we had a so called 50% off). Has this happened to anyone else? I am sure it has, but whether or not they noticed I don't know! We paid around £350 and were led to believe this was half price!!! In fact we consider ourselves conned and now realize we paid higher than the actual price!!! There were loads of these particular shower baths in the sale and there still loads now. Can't believe B and Q would do this. Not only this, but the bath was delivered damaged and all the parts missing!