Bad service

went to them to purchase a phone then first of all the person who was helping me get the phone was not specific as to the fact that I must use a sim card that must be in that phone when we are done I tell them that sim card cannot be in that they tell me they are closing I should do me back next week I went back they told me they changed the number. So it will work after 2 days then I waited it didn't work and the phone is locked imagine paying for something I keep contacting them but all they can say. Is we are looking at the matter and nothing is being done. They don't take their customers seriooua