Poor business practice

On the 12th of April Wheelee offered me R X for my vehicle subjected to pre purchase inspection and I had to accept the offer within 24 hours. I accepted the offer and took my vehicle for inspection immediately thereafter, on the same day. I received no feedback nor the following day , leaving me satisfied all is in order and Wheelee is happy with my vehicle. However the following day (Day 2 , more than 24 hours later...) they rep**** with a lower offer. I truly believe what is good for the goose is good for the gander. They know one is eager to sell and puts you in a position where the force you to accept the lower offer to their benefit. This is really poor business practice and leaves a bitter taste in a persons mouth. They could have contacted me once they saw the vehicle and said xyz is wrong we reducing the offer so that one can make a decision there and then but first sugar coat it for you and come with a comeback on their terms. I won't deal with them ever again!!