Ridiculous return policy.

I purchased shoes online and even though the fit was perfect but the straps are tight. So i went to my local Miladys to return and to my surprise i was told if i do not exchange for anything else i could only get a gift voucher of which i didn't want i wanted my cash back . Its really ridiculous. In other stores you can purchase online and return to a store no questions asked and since i lost the courier packet it was delivered with now i'm stuck with shoes that are too tight.