Why not go to any other store to be fitted?
There is no way that a 36C in every style and brand, will fit correctly and of course a 36C will differ depending on whether your boobs have fed a passel of kids or whether they better resemble the perky type seen on many under 25s.
You'd be better off trying on several brands and styles in store. 
Burnham - rejoin Europe in one shape or form?
. Since then I've worn the Triumph Doreen bra in that size.
