my xps 15 is a joke and im very unsattisfied

in november i was sent an xps 15. it worked fine for about a month then had issues got the usual update this reinstall that blah blah, motherbourd replaced for graphics fault. still problems, hard drive replaced, disk drive replaced, battery replaced, still issues. warranty ended still got issues transfering data and files being errased and corrupted it take 20minutes to move a 1gb of data, with 4gb of ram and an i5 processor (this took 3 min before the forst "repair") and now the screen freezes and trips out with stripes etc when i adjust it. this product is not under warranty now it ran out before christmas. it does not perform well it has not met expectations and the entire thing should have been scrapped with the first fault i now have no warranty and a machine that needs work and i do not see why i should have to pay for it when the machine has a history of being difficient and lacking in any kind of quality workmanship. this laptop has been a joke, i have had to reinstall and re install. how can a brand new product cause so much trouble when my second hand xps 1530 never had 1 issue and that had 2 owners before me!! i want this rectifying with a new machine as it has not met expectations and a lifespan of less than a year is not a good return for the £850 cost!