How do I find My ID number

[kopenhagen5]

An eBay ID is not a number.

YOUR eBay ID is erb2008

MY eBay ID is kopenhagen5.

[padi*0409]

Do you mean the item number of something you've bought ?

If so, it's on the RHS of the listing page about halfway down.

[papermoon.lady]

Are you sure they asked you for an ID "number"?

Your eBay ID is erb2008.