The worst experience I ve ever had with an estate ...

The worst experience I ve ever had with an estate agent.
I made an offer on a property which was initially accepted, only for the agent to call back to advise that the property was attracting bids in excess of 10k of the original asking price, though I could have the property if I exceeded my bid.
I then saw that the property had been re-advertised for a much lower price. I spoke to the switchboard who confirmed that no offers had been made and was still for sale.
I am very suspicious of the tactics deployed by the agent and wonder if there is an ulterior motive. Be aware of this estate agents and a sales agents named Osian Williams. Horrible service will be taking this matter further