Who pays the bill?

Who pays the bill?
My parents, they will,
I can't,
So they'll bloody well have to.

My texting comes first,
Even more than my thirst,
I can't stop for a moment,
It's gripping.

Then comes the black day,
That the bill comes, to pay!
I keep quiet,
And say not a word

For the final solution,
Brings sharp execution,
I ain't got a mobile no more.