from my experience its calculated during payment. i know its a little late but now u will know in the future

had the same issue when having client on the second monitor (it did not have this issue when I had the client on primary monitor). You could maybe try deleting config.wtf file and acount folder in wow-mania/WTF folder but you'll then need to again insert the "SET gxWindow "1"" in config.wtf if u wan...