Terrible service

Service from the time I viewed the car to 1month of having the car has been dreadful. There is so much wrong with the car. They have tried fixing the car but alot needs to be done the car does not seem roadworthy I asked to cancel the deal they said ok they will took the car back to them and I had to follow up 4 days later to find out how far they are in the process and was then told they won't cancel the deal