It is a very important journal in the field. My paper is a letter explaining that an article previously published in that journal had a mistake, and that the correction reverts the result. The paper was accepted in September 2019. It seems that the editor does not like that my paper has evidence of a mistake in the journal. I considered complaining to the company that publishes the journal. Can anybody recommend an attorney to assist me, and maybe to legally defend me? I have been waiting for a long time now and they have the copyrights.
Seems to me that the most probable explanation of this is that the editorial board member who made the 'accept' decision is unfamiliar with the system, hence the 'accept' decision did not actually go through (e.g. it should've reached the editor-in-chief, but it didn't). If the 'accept' decision reached the publisher, it would be extremely improbable that the publisher does not publish it.
So, make sure that everything is actually working as it should. Ask another member of the editorial board, perhaps the editor-in-chief, to check what's happening. You can also ask the publisher.
Note no response to email does not mean they're ignoring you - your email could've gone into the spam box, for example.
I would send an email to the editor in chief of the journal or the publication team. Depending on the amount of back processing required, publication in a journal can take years, based on what I've read. However, you have to pose some, perhaps rhetorical, questions to yourself. Do you have documentation of your submission and approval? What is said by your colleagues, university, or supervisor? You also need to account for the actual time frame that takes from submission to publication. Publication involves numerous steps. The submission of the article comes first, followed by peer review and journal publication. In all academic fields, the average time from the moment you submit your manuscript until you receive a firm decision is one year. It takes an average of six months more after your article is accepted before it is published.It's important to use caution when wording your response to avoid coming across as conceited or biased. It is highly recommended that you consider the possibility of an honest mistake instead of the editor attempting to censor your work. Keep thinking positive.
If you feel uncomfortable to call, another approach would be sending a letter via the ordinary mail. Stop using E mail. Spam is very abundant now and some filters may be aggressive enough to drop your message without any obvious reason.
Staff change is a likely reason why some decisions have been forgotten. If they have changed they mind, should have notified you.
Never wait for as long as four years.