Extremely Dissappointed Customer

I purchased a nissan Qashqai from bb nissan hatfield. I dropped my car off to get leather seats fitted as it was part of the deal. When I got my car back it was damaged and seats where loose. After weeks of back and forth, my car is still damaged and nothing was done to correct the damage done to my car. I suggest not using bb nissan my expererience was extremely dissappointing. I regret buying a vehicle from them.