i cant pay my whole phone bill. what concaquinces will there be for that?how much is the late fee?

you will get a late fee, or worse sent to collections.. yikes!

well if you can pay the whole bill pay what you can and the will just add it on the next bill. they might be a late charge but that depends on ampd mobile so i don't know what it is. they wont send it to collections unless you are like a few months late from not paying.