Why do several of my buyers have exactly the same buyer ID?

[kazyann]

I only noticed this today, 3 buyers this week have the same identical buyer ID - they are different people, different towns etc….. when I click the buyer ID name for further details it doesn really say anything apart from saying have been 4 transactions. Any logical explanation, as I thought each buyers ID a was unique?

[rainbowtrax]

All ids are unique but one buyer can use multiple delivery addresses. Your buyer is either dropshipping or having items sent directly to other people as a gift.

[red_magpie]

I thought each buyers ID a was unique?

They are. And each registered user has to provide accurate and up to date contact details. 

Buyers can specify a different address at chackout, but unless they do so you can only deliver itms to the address they have registered with eBay. Otherise you will invalidate to conditions for seller protection.

Must go now - if you suspect malpractice contact eBay customer support.