"Informal/Verbal" Breach of Contract

Submitted a request for my car to be evaluated, received a response almost immediately and was contacted shortly by Anton however.. Car was evaluate the next day and I was offered R125 000 which I advised was low offer, evaluator then requested my settlement amount which I advised was R132 000. He made a few calls and then agreed that they will settle the bank at R132 000 but it has to be done immediately. I advised that I needed time to decide of which at the end of day I confirmed that they can have the vehicle at R132000. Schedule a further appointment for two days later to finalize the deal and when I met with the evaluator I informed him that my settlement amount is R104 000. He advised that they cannot continue with the deal as the settlement amount is different from what was initially quoted and that he was doing me a favour by settling the bank.

Please help me understand the difference between settling the bank directly or paying me the value and I settle the bank? You was prepared to offer me R7000 more if you settled the bank( even though I had **** about the settlement amount) but you was not willing to do so when you had seen my settlement amount being less. It goes to show that you are willing to ******* customers who are unsuspecting or unaware of the impact their settlements amounts have versus a fair evaluation of their vehicle.