so I ordered a pair of silver screens off ebay. I ordered an 11 but received an 11.5 I'm in talks with the seller to exchange the pair as I opened a return request. This is what the seller said: "HI, yes luckily were able to get a pair. So options are can send back for full refund, or we will be able to to express the 11 out tomorrow to you. But the return request will have to be closed as with a return request we will need to accept it soon and cannot send if able to return for refund and have a pair still if that makes sense." I want to treturn these, so I'm going to ask for a return postage slip, as i shouldn't have to pay for being sent the wrong item. Should I be wary of anything if I follow through with what this dude suggests? He has a big store, 99.9% positive feedback and over 13000 things sold so I'm not really skeptical.