Hello 'lifuku6',
It sounds like you made a straight credit card purchase (no paypal account).
When you do that, you get 2 receipts in your regular email. First, a paypal receipt
(paypal, the company, processes the money from your card to the seller, even though
you simply used your card), and second, a confirmation from ebay.
Are these what you are looking at, in your regular email? Which one is posing the difficulty?
The paypal receipt should show how much you paid, to whom, the date, all the details as well
as a 16-digit receipt number.
The ebay confirmation is a summary of the same details, with a Go to order details button,
leading you to the ebay order page when you click it.
Neither of these will ever ask you to click a link and enter personal information of any kind.
If you need to sign back in to ebay, well that's your 'lifuku6' account and for that all you need is
the user ID and your password. You must have created that one yourself because it is not an
automated 'guest only' ID.
If you cannot remember your password, the system will send an update to your regular email,
the email you have attached to 'lifuku6'.
Or was it something else that's giving you trouble?