I'm grateful to you all for your comments and advice.
I am aware that Holiday Lettings don't vet although I have been renting holiday apartments from them for several years now, in Spain, Portugal, Canary Islands and Calis beach and have never had a problem until now.
Brian Chambers lists about 10 or so properties in the Fethiye Calis area although only since January 13, it is noticeable that none of his properties attract reviews. The properties are also listed on holiday lettings partners site trip advisor.
I have already paid a £50 deposit, which I am now resigned to losing, although the booking was made using payment protection where holiday lettings claim they forward the money 48 hrs after you arrive at the apartment. They claim that they will refund you your money if you dont get access to the apartment. I have never used this method in previous transactions with holiday lettings although assumed this safety net would protect me.
I am surprised, given the number of properties that Brian Chambers lists, that no one else seems to have complained about him.
I am now in the position where I am travelling with my wife to Calis on the 30th Sep to the 7th Oct and need to find an alternative apartment in the Calis Beach area.
Grateful for all your response and comments.