The story must have been from the late 60s, early 70s. Too fluffy for Analog, so maybe Galaxy or S&SF. I can recall all the elements of the story except the title and the author.
Real short piece in the form of rejection letters. The editor keeps rejecting stories by the author because they all involve a “pact with the Devil.” The author tries all sorts of stratagems to get the story published, going so far as to write one about the squid packing industry called, IIRC, “Packed Full of the Devilfish.” The editor rejects them all, until he gets a letter from the author telling him it’s too late, and that he won’t be sending in any more stories. His time limit was up.
A little help?
(If the title turns out to be “Pact With the Devil” I’m going to be pissed!)
Small typo. The title is actually “If At First You Don’t Succeed, To Hell With It” I found it reprinted in a paperback titled “100 Great Science Fiction Short Short Stories”, edited by Isaac Asimov. (ISBN 0380507730)