Hi there.
Thanks for visiting the community.
Sorry to hear that you are getting an incorrect data allowance for your mobile service.
Have you checked the tariff through your online account? The sim that you have will not show that it is 60GB. It will be your tariff that will show if you are on a triple data promotion.
You can use this link to check your the tariff on your mobile account , just click here.
If this doesn't help, we would be happy to take a closer look, view this in your account and we can do this via online chat .
Please let us know how it goes.
^elvee_o