prepaid counter

dear all, I need your advice for my prepaid billing, i have several scenario : 1. prepaid for 4 hours and expire in 2 days after login. 2. prepaid for 8 hours and expire in 4 days after login. 3. prepaid for 24 hours and expire in 1 day. i have configured my freeradius and mysql using rlm_sqlcounter, i have tested with sample account from sqlcounter doc and its works. . i need to make or change default scripts for above schemes. can any body help me. best regards, rusma permana