Disgusting service

I recently purchased a lap top and on turning the machine on discovered the inbuilt mouse and keyboard did not work ,the following day I returned the lap top and it was confirmed to be a fault, however no new replacement was available for 5/10 days, as I was going away the main purpose of the purchace was to take the lap top with me, so it was suggested that the only available quick option was the display model which would require display software removed CLEANED and fully tested ,I was offered a generous discount of £20.00 after some bartering for what is in effect is a second hand appliance.I was told to expect a phone call as soon as the machine was ready ,as no phone call was recieved I called into the store to join the que of other dissatisfied customers, eventually I was handed a lap top that looked like it had just survived a dust storm covered in fingerprints ,no battery,no box ,no instructions ...after Calmly explaining my dissatisfaction at the offered lap top and refusing to accept it in this condition no further assistance was offered , at this point having now spent an hour in the store I demanded my money be returned and I would shop elsewhere .
In conclusion the service I recieved on a scale from 1- 10 would still stay in minus and I can Assure PC WORLD that any future requirements for personnel or business would not be at there stores