Just got a letter from ACC telling me I was due a refund as they had found my invoice for the first year of self employment was not correct. But that had to be about 38 years ago! How on earth did they discover this I wonder after all that time? 

Anybody else getting a windfall? Wonder how much! 

Do you think I should ask for compounded interest? (yes, just joking).

Hope it at least buys me a pint on a Friday night at the club!