As another poster has already warned on this site double bookings of holiday accommodation are unfortunately quite common in Turkey, in fact it happened to us only last year at the Club Ako apartments in Marmaris, where despite booking and paying in full for 2 separate apartments in April, upon our arrival at the establishment in August we were met by an uncooperative Turkish manager who tried to squeeze us all into a one bedroom apartment, making the excuse that it was 'peak season', and when we complained he finally gave us one apartment for 3 of our party, and a room usually used by staff right next to the bar and backing onto rubbish bins and beer crates for my husband and I.
Am not sure of the legalities of the situation, were told by 'easyjet holidays' upon our return that there was nothing we could do except accept the managers half-hearted apology.
However, would advise any holidaymakers going to Turkey this year to email the place you have booked insisting that an email be sent back with the room numbers of your accommodation, which you can then at least print off and take with you, or phone them and ask for the room numbers to be sent to you in the post.
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