Vodafone ask for survey comments saying that I will not be charged and then after I spent MY time doing the survey I was deducted 20p for the text, totally behaving like thieves. They also charged me 20p per day for "data" which I didn't use.....this was resolved with a nice customer services rep,....that is why I did the survey. The problem seems to be in the programming of their system,.....deliberately to scam every penny from their customers. Once my credit has finished I will not topup with them again. And I will never use them again or EE ( which seem to be part of Vodafone's network.