Microsoft Copilot Pro free trial is not available in Ireland but just for US custommers?

I am trying to start a Copilot subscription and it offers a first-month free trial. But the form for a credit card that is required for a free trial only lists US States and Country is greyed out (locked to the US). 

Does that mean that the free trial is only for US customers and Irish have to pay before we try Copilot?