i sold a seat unit on ebay and put postage £12 to united kingdom only so sum1 puts a bid on it wins it and lives in northern ireland when i rang the courier they say it wil be £17 to courier it as it is not mainland uk fair enough i emailed the buyer and said b4 she paid me that the coureir will be £17 so does she want me to relist it few hours later she pays me by paypal but only the £12 postage and no email what do i do i cannot post it as it only came to £20.99 with the bidding aswell hellllllllllp