price of off , at the copa show bar

i am not in town at the moment , so cannot check what i have been told and that is, the cost of an off, at this bar has been upped to 700 bht, can this be really true, or is it a mickey take?

I think it is very unlikely to be true.
The most expensive Bangkok go-go bars charge 500 for an off and the going rate for other bars in Boyztown area is 300-400.
I suspect whoever told you 700 was adding in the cost of 2 drinks.

In most bars, like the Copa, you are allowed to off everybody, but not everybody has the same 'off-fee'.
From the past I know, that, at T&S, the regular dancers were THB 300, waiters THB 400, up to THB 600 for showdancers.