Conn,s Home Plus Defective refrigerator and would not honor 10% off for which was advertised Beaumont Texas

I went into Conn,s on 08-06-2016 and purchased a refrigerator for the price of $1159.00 and when I got home I called because I did not receive the 10% off, I looked at my flyer and it was not a coupon so I went in store Sunday and spoke with the manager Ruby but she said it was not showing delivered so she could not go in and put it to return my money because I paid cash.  Monday I went back to the store and store manager Arthur Alexander proceded to help me and we still could not get the matter resolved, then that afternoon my sales associate Cedric called and said I they would not be giving me my 10% off.  Then on 08-09-2016 refrigerator not cooling (I purchased a side by side) and I called and spoke with Arthur again about problem I was having and he assured me he would send someone out Wed. and I never heard from him, because I stated to him if it had to be repaired I wanted a new refrigerator because that is what I purchased.  I called the service dept myself Thur and they came out today which is Friday and said they had to order a part, I have tried and tried to work with them and I have not had any issues resolved.  I said I do not want this item because I have had it less than 1 week and it is a problem.   i feel like I have been ripoff and because I paid cash they are not trying to resolve this.  I would like them to come and get this refrigerator and bring me a new one out with no problems like what I paid for.  I will never shop there again and I should have listened to other customers who have had the same problems with them.