Evening guys, Few days ago I have upgraded my mum from pay as you go to a monthly contract sim ("unlimited" data, X amount of texts and minutes) all for £15 a month. I have asked the guy multiple times whether the whole deal will be £15 and he has said yes. Today I have opened a letter stating the first bill which was £26 (inc VAT) and I was shocked. So either the guy has made a mistake or actually attempted a scam (I doubt he would try and do that, why would he?) My question is, what should I do? Is there anything the British Law can do to aid this situation?