Do you mean that you have had an email from ebay stating that the seller has requested and been sent your contact details?
With Paypal the seller would normally receive your postal address so have you checked that everything is OK with the address you have on your Paypal account, eg correct Post Code for your suburb because click and send does sometimes have a bit of a hiccup when doing address labels and will warn the seller that the address might not exist.
If you are really concerned about this then email the seller and ask them why they needed your details from ebay.
BTW if you did receive an email from ebay it should have the contact details of the seller in that email.
