(26-02-18, 09:32 AM)YamFazFan link Wrote: Why is it that when small shops short-change you it's always in their favour?.
My local takeaway swindled me again last night.
First they tried to give me a £5 instead of a £10, then I found I was a £1 short in the coins.
A couple of months ago they spent 10 minutes interrogating me as to whether or not I'd paid, even though it was the same person that took my order and money at the start!.
Foc 'em, I'll go to McDonalds next time where they know good customer service.
Yeah, that gets me too.

Unfortunately it is endemic even in big organisations. Sometimes it's a genuine error and other times it is intentional, and as you say, it is odd that the error is always in their favour.
A really blatant case for me was last year at a bike meet. In a well know coffee chain the girl tried to give change for a £10 note rather than a £20 note.
It is best if you can pay with the exact value, but that means carrying around a load of notes and change, or pay by card.
Of course, when you have had a few pints of Butcombe it is not so easy to keep a check on things. :\