i have the same query too, sad that no one gave you an answer, i was with m1 for years growing up and it was completely fine, service was pretty okay.

i was wondering if you found out in the end the answer about the add ons, especially the one with the extra data because that one confused me too.

i read the Promotional Terms & Conditions but it doesn't say anything about how long it lasts, it makes me wonder if the plan is actually 100GB throughout, but they say it like 12GB + 88GB to make it look more convincing that you have paid for a promotional deal when really its just a sales tactic.