Dishonest and sly

I had to pay them R1000 to sell my vehicle for the price I requested (that was on Wednesday) and I told them that is the minimum I would accept. They promised me that they will let me know if they received any offers on the car and what the offer was. The next day they starting to send WU would we consider lower prices, just to find out on Friday that the car is already sold, and I was not even informed that. On Monday morning they send an sms to us to find out if we will consider R10 000 less than the original price, but remember the car was already sold, they didn't know that we were there and found out that the car was already delivered to the new owner. They are not reliable and very dishonest