You either you do or you don't

EM: How can I help?
Cust: I have this bra and I bought it going by what I had before but it's too big so I'd like to get the cup size smaller
EM: ok, what size did you need?
Cust: this is a GG but it was huge. So just one cup size down
EM: sure, we have it in stock, did you want to try it on?
Cust: I've had it before, that was five years ago and they might have stretched but I'm sure it will be fine
EM: ok, so you just want to take it?
Cust: yes, it should fit, shouldn't it...
EM: well, if you don't want to try it I'll get someone to just bring it up...