I went into a costa coffee earlier ordered a large coffee. They said that will be £2.65. I only had £2.50 on me so I said i'll just nip back to car for 15p, they said don't worry. So they must be doing well if they are willing to let you off.
It's the 3rd sunday in a row I've been into a costas, on each occasion I've ordered large coffees, and been charged different prices.
1st one I went into I was charged £2.20. Last sunday I got one and was charged £2.40 and today I was charged £2.65.