We Buy Cars - not quite what they make out to be

As advertised, I called we buy cars and sent them pictures. The contacted me the same day and gave me an offer which I accepted. We made an appointment for 2 days later. The afternoon before they arrived, they called to say their sales were slow and they therefor had to drop the price another R30 000. I don't recall this in their advertising. This is clearly a tactic of theirs, so just watch out. They commit but don't commit. The irony was I wanted to buy a motorbike on their website. They have certainly lost this client.