Please suggest a package be it prepaid or postpaid.

We are currently on digi
Currently my committed amount for sub line is about RM40 or slightless less after discount the auto debit .

Free call between main and sub (but we rarely call each other, just whatsapp or use office fone to call FOC!)

Call rate 1 min $0.13, and 30 secs $0.07

Oct call usage RM22, nov $24, dec $14.36

150mb data (sometime accidently hit youtube then habis)

I feel that a lot of credit burn because of under utilized.

Please suggest a package, hopefully must be able to use back SAME number!.