My daughter signed up for "unlimited everything" at £15 early last year.
This was increased by 10% to £16.50 last summer.
A letter today says it is going up to £19. And increase of over 15%!
But the letter states that 08 numbers will be free (she has never had to call an 08 number), calls in the EU will cost less (she doesn't travel to the EU), no charge for receiving calls from or within the EU (again of no interest to her), and "more wifi spots" (which she doesn't need as she has unlimited data in her tariff).
So it looks like she is having to pay for things she will never use. Thanks VM.