Drive thru Pharmacy

Now days, Visit to pharmacy is becoming more often.
Good thing is I can re-fill the prescription on automated phone & pickup at Drive thru.
Sad thing is after having insurance; I’ve to pay from my pocket as Insurance only allows 30 tablets per prescription that costs $18.79, which is lesser than $20 co-pay.
Policy says if prescription cost is less than co-pay, then I pay the full amount. Bingo!