No respect for entering into a sales agreement

NO respect for a contract of sales. As it seems others have experienced. Shocking shocking service. I normally would not bother to complain but the treatment from this garage was appalling. I confirmed a car purchase with them over what's app. The next day they sent through the OTP, 3 times they tried and failed to supply bank details to me. Eventually I had to call the manager who gave me the bank details. I rep**** saying the transfer was coming in the next hour. Then I get a what's app from the salesperson saying hold on the transfer. I ask why - no reply (the salesperson did not answer several what's apps). Eventually I got through and he told me he was selling the car to someone else!!! I explained this was not acceptable as we had agreed a deal and was reassured when he said he would sought this out. Then nothing again. I had left a message for the manager to call me - he did not - so I called again. Explained to him and was reassured that he said the car would not be sold to someone else - he would sort it out and get back to me. He did get back to me and no you cannot have the car - the other buyer has a finance application in so those clients get first shout at the car and if their finance failed then he would offer the car to me. The manager showed no compassion for my wasted time and effort and in so many words just that's what it is. Well done Motus you just lost a client.