How many days too soon?

I think you should count your fills each time now.
Sometimes shorts can occur by accident... a miscount.

Were all your meds too soon? Is it a controlled substance?
Has this happened before?

If this is a first time, I would speak to a manager and if they agree it might be a miscount, they should give you what you were shorted, this time. Typically then you will be flagged for a double count from now on.

If this is a first refill on a new RX...it is possible the wrong day's supply was entered. This would then show a refill too soon. That can be changed so it does not happen again.

Make sure your insurance has not changed. Some plans change days supply. Some retirees were reduced to 21 days supply from 30 for example.