Booking.com — morfoula's studios mykonos

Hi, we have arrived to this place which is absolutely substandard. The boothroom was overflooding, the room looked like it is from 1950s, cracked tiles and bath and absolutely no appliences. The bathroom is also very dirty, tiles have not been scrubbed or cleaned.
The picture of the room attached to our booking does not match where we are staying. We have asked to be transferred and no attempt was made to give us the room we have been promised.