Eight days ago my cell phone and all phones of my company stop to working. Internet and voice.
I can't call anyone, i was on the road, in another, state without a cell phone.
The company TIM doesn't care about our situation and told that the time to solve the problem was 5 days.
I am still without a cell phone.
If you will travel to Brazil, do not buy nothing with TIM, the worst cell phone company in the planet i think.