Barry McKockiner
Fantastic answers everyone! Much appreciated. Given it’s a small business I think I will head back in and do the right thing.
Chico
Nikki
Biscuit
AttyRose
I would call them up and tell them. 
paulUK
Penny
It depends. If I got really good service and if it's a small business, I totally would mention it/call them back and let them know. If it's a big chain, and I don't really care about them as much, I probably wouldn't say anything at all. And just take it as a win.
optimist
Barry McKockiner