I bid on a bag before authenticating it (i know, dumb move). now i'm seriously questioning it's authenticity even though the seller guarantees it. they said 100% or your money back. the seller has low feedback and there's something that looks off about the bag and dust bag that i didnt notice before. the auction has not ended and is active for a couple more days. can i ask the seller to retract my bid and will they be able to give me negative feedback due to this? my feedback score is perfect so i dont want that to be ruined. what can i do in this situtaion? i don't want to buy a bag, have it be fake and go through the hassle of returning it if i can avoid the whole situation now. i also dont want to pay for return shipping and have the chance of the seller denying receipt of the item.