Very funny!
Alistair Darling is our (Britain's) Chancellor of the Exchequer, he's our finance minister !
Now, considering the state of our country's finances,this may all be genuine. After all, the Treasury have been behaving like Nigerian scammers with our money

Incidentally, we spell 'honorable' 'honourable' and Mr Darling is the Right Honourable Alistair Darling M.P., not the 'honorable'. He's not a member of the Scottish Executive, either. He was once the Secretary of State for Scotland, and he is a Member of Parliament for an Edinburgh constituency, but he's not in the Scottish Executive (the national government for Scotland). Indeed, as Chancellor, he's been in regular arguments with the Scottish Executive.

I've no idea what the 'British Executive' is

These Nigerian scammers are often Nigerians who have studied in England, for the English Bar Exams, or they know someone who has. Often they've not completed the course. At best, they've a garbled understanding of our law and government.