What is eating my Iphone time

I buy 50 pesos and it gives me a 30 day period it will be good for. I seldom use it, have everything shut off (I think) and it's lucky to last 3 weeks

Telcel

I have the same problem.

I specify Wi-fi access only for browsing so my email shouldn't sync with the phone over the air. But my Android still beeps a few times a day and it can't just be those damn annoying Telcel adverts.

I don't use the phone for voice enough to go through 4 or 500 pesos in 2 or 3 months. I'm told I get a minute for one peso.

SunFan

Open Apps, eat up time!

I looked at recent calls and there was a bunch to a Telmex number and I know that costs more than cel to cel. My neighbor is always out of cel time so borrows mine

How much more to land line I don't know