Every time i recharge my credit, my Iphone uses it UP?

I have an Iphone(the first one)… I have had it for about 10 years now.
I didn't have any problem with it ever before but now everytime i recharge
my credit with whatever amount, my phone uses it up to acess the internet
without a notification. So what i'm saying is that while i think i'm using Wi-Fi
to browse the internet, my phone is using my credit to acess it.
I don't know how to fix this problem, Please Help!

Go into your settings tab on your iPhone and make sure you have location services switched off and also personal hotspot. I know they use Internet all the time on the iPhone 4 not to sure on your model. Give it a check.

  • Will my iPhone text send automatically after recharge? I forgot I was out of credit and tried to reply to a text. I recharged straight away (Optus prepaid iPhone) once I got the message saying I was out of credit. Cause I don't want to send it again and he receive it twice. But I recharged with in 5 minutes later. Will the text I sent but failed before automatically send?
  • What's best way to recharge ipad & iphone faster? I'm Mario, i have this problem on ipad & iphone. They don't recharge enough, so i was wandering, that is there way i can recharge them quicker also is there any cable that can recharge them quicker?
  • Should I let my iphone die then recharge? I have an iPhone 5 is it true thats it's good that once a month you let the phone die out then recharge it to 100%, I usually recharge it at 80% or less so I have it charged the whole day, I charge it overnight also. Is it true tht you should do this?
  • How long does it take an iPhone to recharge after it had been dead a long time? My cousin just gave me her old iPhone 5. It's in good condition but it's been sitting in her drawer for months. I don't know how many months but a pretty long while. Anyways, i out it on the charger and it hasn't moved from the red. It's been on maybe… At least a half hour. Is it okay? I don't know anything about these machines lol.