Sezanea after sales is appalling

I order via a Facebook link and to all intents and purposes it was a US company. On request for return, they asked if I could give to a friend as a present which would be perfect for them as return Costs are expensive! But they would provide me with a $5 voucher !! I also bought 2 sizes with the view of returning 1! Quality is also not as advertised and the Facebook link is no longer functional although the site is, if you go directly via google