Promotional offer are not for everyone

[forluca]

I received an promotional offer. Tried to activate it, but I received this message:

You're not eligible for this promotional offer because sellers from your country of residence are not included in this promotion.

My question is Why? 

[61stephenuk]

Promotional offers are generally only available on the UK site to members who have a UK registeres address.

Overseas members should be registered on the global site ebay.com