Bad ! Poor ! Do not recommended

I bought a swimsuit from Jet Thursday morning went straight to Middelburg another location from my Jet as they did not have the size. Did not fit it thinking it will be fine, and I had to rush. Got home to fit it only to see that the seems are loose and ver poor quality. Cant use it as it seems worn out. Policy says I cant return it. What should I do now ? TFG ??