I have been taught different things regarding when to use a semicolon or a comma to separate the items in a series in a long sentence. Take the sentence below:
If you do not like what I have to say, email me at the email address provided on my website, call me, or send me a text message.
I have always written them as above until this year, when I learned that the seemingly "proper" way to do so was as follows:
If you do not like what I have to say, email me at the email address provided on my website; call me; or send me a text message.
What makes this particular example ambiguous is that my AP Style Guide (which I largely conform to since I copy edit a school newspaper) says that semicolons should be used if all of the items in a series are long. This series contains both short and long items and also has a comma after the initial dependent clause.
I suspect that this is mostly a style guide thing, but any clarification here would be appreciated since my sources seem to contradict each other.