Increased Mobile bill

[apotek]

I have taken out a new Vodafone contract nine months ago and have just been told it will increase by 3% next month.
If I have a contract for two years surely it`s fixed.
Just doesn`t seem right

[apotek]

Thanks for replies all interesting. I have been 20 years with Vodafone just renewing when I fancied a trendy phone, I will consider this come renewal time as this smacks of sharp practice that I cannot avoid at the moment