I'm not on Mars, but here in Bangladesh I pay for "unlimited" broadband, but when I exceed 100k/s for a few hours in a given day, I am throttled down to about 3

I'm not on Mars, but here in Bangladesh I pay for "unlimited" broadband, but when I exceed 100k/s for a few hours in a given day, I am throttled down to about 3K/s for the next 24 hours :(