My only problem is my stupid online pharmacy sends them out DHL, but USPS delivers them. There is always a delay between when DHL says they gave it to USPS and when USPS says they got it from DHL. From a few days to a few weeks.

This only happens with my Vyvanse, which is a controlled substance, so has to be signed for, and it not easy to get a refill of.

It's still better than the pharmacy which is always out.