Mastectomy Swimwear

3 months ago I purchased Jets Masectomy swimwear from Swimwear Galore. I have worn these around 30 times and now the masectomy pouch has collapsed and my prosthesis sinks down to around my belly button. As the swimwear cost around $200 plus postage I returned it to the company this week but was refused exchange/refund as the swimwear is not chlorine resistant and therefore the company states will not withstand any pool wear. This should really be stated when purchasing the swimwear because obviously I expected it to last more than a month and now I have to pay for postage for them to return the swimwear for private alteration if i do not purchase new swimwear through their site. Which i refuse. Previously I wore another brand of swimwear, Palazzi, which lasted the whole of summer.