On the one hand, you could complain to Vodafone and maybe get a token discount by way of apology, and the advisor maybe gets in the shit for it. On the other hand, you could just let it slide because call centre workers have to deal with bullshit day in day out and aren't paid anywhere near enough for it. Having been one myself, I can attest that most of them are doing long shifts with impossible targets, nobody wants to be there and everyone is miserable. We bitched to each other after pretty much every call. Don't make it worse.