With recent winter weather, expect MAJOR delays. A certain company is under a National Disruption. No need to ask the vendor why if you have a tracker. My buddy said weekday letters will go out asap (sat if possible). Good luck.
Expect delays! - This is always applicable - if you need something urgently than go to the next drugstore physically and buy what you need there with prescription. If this is not possible than do it online - but always expect delays and do not panic if you will have to wait...