Have been informed that from early May the standard call charge will be changing from 8p per minute to 10p per minute, and the standard text charge will be moving from 4p to 6p.
Cant give you a link yet.
I received a text today, saying that the information is now on their website.
See:-
www.asdamobile.com/tariffNote:- the price changes happen on the 31
st May, not at the beginning of the month, as indicated in the OP.
One lamentable change about which BJ did not warn is the huge increase in their data charges. These are going from 20p per MB up to 2.5 times that amount:
i.e.
50p per MB !
There is also confusing wording on the website, for example "All texts 6p" in one place, but "Texts to Overseas from UK SMS" 30p in another !