to complain at the ridiculous price a restaurant charged for a soft drink?

[Volkl]

or is it not worth the effort.. because i was fuming when the bill came, but have had to chance to think about and can't decide if its worth it.

2 pints of lemonade and lime - How much do you reckon?

*treating

in my pub we charge 30p for the lime and the soda is free as it does not cost anything to the landlord. Also you know its cost 7p for a pint of coke if it is coming from the tap so that is a stupid price to pay for a lemonade

UPDATE

Here is the reply:
In regards to the price of the lemonade, this appears to be an overcharge and a mistake on the part of your waiter/waitress when putting through the drinks on the till. If you could reply to this e-mail with a postal address, I will send you £10 in vouchers.

Looks like we'll be going back there, but perhaps i'll be on the wine!