You can terminate your line BUT since your within lock-up, you will be charge with pre-termination fee. You may call the retention hotlline to inquire for your preterm fee 027301300 from 8am till 10pm. Or to avoid paying preterm fee, you may also request for payment arrangements. If your line gets disconnected, that means no outgoing service BUT you will still be charge with MRF (monthly recurring fee which is your PLAN). Since your account is postpaid, be a responsible user to avoid high charges and check your bills if there are "INVALID CHARGES"..