What happens on volume exhaustion of evo wingle?

I am using 20Gb prepaid package on my evo wingle. I want to know what will happen on volume exhaustion? will wingle stop connecting and i will have to manually obtain additional usage? Or usage will be automatically given to me and i will have to pay for this on new recharge? please help :(

In may case its postpaid and speed gets reduced to 256 Kbps.

In case of prepaid, you will need to re-charge again to use it.

^

Yes.

Thnx For ur Help Every1 :)