Last year, we did find the local market on the corner of the road going up to the old upside down bridge, did have some slimline tonic in very small cans. I was in heaven when Phil brought some back. Cans were a little rusty and dirty, but we bought up all the stock at 4.50TL a can, (which would make one drink). We even took it out with out to restaurants. However, stock dried up and even though we asked they said they could get no more. So, it seems you can get slimline tonic in the area, even though the restaurants say they can't.