13-03-2015 10:55 AM - edited 13-03-2015 10:57 AM
Request the seller details (phone contact) via eBay if you have not had a responseby COB today.
If they are a hobby or low volume seller, once an item is paid for and posted, they would have no reason to come back to check emails - they would have posted to the address you provided in paypal which is what they have to do.
Phone the seller and ask if they can redirect to your current address, be prepared to put the request in writing (email) for them, and in future, please make sure your details are up to date, or that you at least check the postage details upon check out when you go though paypal.