I can’t speak for anyone elses situation, but I wonder if some of THIS kind of mistake happens because of attempts to keep costs down.
Some doctors ( and since this is a food forum, some stores) supply refills to cover that period during which you don’t have to think too much beyond that appointment/contact, then want folks to come back in.
Lately I think the commercial tendency is to make it easy to order “refills”, but not easy to think about it. Enter crazy automated processes that seem to make sure there is never an interuption in the flow of the product, but have a tendency to benefit from thought.
I think having to think about it is why the process exists, but who wants to pay someone for thinking?
Sorry. Not sorry.