There are 2 sort of mobile phones
1
Simple, cheap ones that only make & receive phone calls, voice mails, texts, photos, pay as you go
No internet access
You could run up big bills via adult pay services eg chat, photos
You could run up big bills phoning or texting in other countries or phoning eg 0845 numbers
2
Smart phones that are more expensive
Pay as you go or monthly contract
Services include
Make & receive phone calls, voice mails, texts, photos, videos
Games
Internet access (data services)
Maps
Add on apps eg facebook, Youtube, Netflix, Twitter etc
Adult pay services eg chat, photos, videos
GPS
Voice recording
Camera, video
Internet banking
Instant messaging
Email
Basically, a mini computer
Phone company should explain their charges clearly >see their website for full details
Your phone > your bill
I think some phone companies offer a set maximum spend amount per month > monthly spend cap (a bit like banks informing their customers when they are over drawn) to their customers
Is there any update ?
How much does the phone company expect to be paid ?