Got my Lenovo desktop repaired cause it had a faul...

Got my Lenovo desktop repaired cause it had a faulty hard drive. These guys charged me to back up all my files from the old hardrive. Turns out nothing was backed up and I still got charged and now the shopkeeper won't refund my money either.
Horrible customer service... horrible technician..stay away save your time. Not only I lost all my data I also had to pay for service I never got.