only if:- the contract was taken out before July 2021 and it is not unlimited data, which then is restricted to 25gb.If it is a Sim only then definitely not there is a limit I think of 25 GB. But if you had a contract before, as I do have 100 GB, that is still able to be used until the contract ends. Then we all got a worry
if taken out after 30th june then its usually 25gb a month or fair usage