Attention: I'm not a teacher.
Hi
There is again my two cents contribution concerning the matter in question.
There is no doubt about the fact that in practice,
exclusion occurs
every day. I made a brief exploration concerning the usage of the adverbs “anymore” and “any longer” which led me nowhere. I didn’t obtain a definite result. I think we have to make a difference between
anymore and
any more. On the analogy of the naomimalan's statement, I am sceptical about Banderas' rule. Presumably there is such rule, but not very many follow it.
And this is why I wrote in my original post:
"
In theory, we use "any more" for events and
we use "any longer" for processes
is "not being available at that time" a process or an event?;-)
In practice, "he could stand the pain any longer".
Pain is a process, in the sense of a continual action
but any more could be used in informal speech.

Which simply means that it doesn not really matter what form you use.
What I learned on these forums is that:"
The reality is, to be truly fluent and conversant, one needs to learn a couple of Englishes: the real English that people actually speak and the Institutional English used in formal communication. In my own view, the latter is not so much a language as a set of arbitrary, socially demanded conventions. I have yet to meet a single English speaker who speaks so-called "Standard English."
Thank you JJM Balantyne!;-)
So when I said "In theory" I meant Standard/Institutional English. when I said "In practice" I meant the "real" English. It is like the argument over "to me and for me" forms. It does not matter in the real English if you say " any longer or any more" although I personaly am not sure if I said " I can not wait any more". I would say "I can not wait any longer" instead. Can any native speaker comment on this example, please?
V.