There is no 30% off coupon for your first purchase, that's from revolve clothing online
You also can't combine discounts (the 30% + 50% = 80%) at SSENSE.
I'm not familiar with gstar/superdry sizing so I can't help you there.
As far as I know, ssense has one of the best customer service's online so returning it should be no issue. Just aslong as you pay for shipping, tags are still on etc.
Posted via RS Mobile