By all means tell the publisher. The chance they eventually update the ebook may be slim, but it's worse if you don't tell them. If the publisher does not respond, please upload a list of mistakes somewhere, this serves both to shame the publisher and to help other readers fix their versions.
I have read the first two ebooks of
A Dance to the Music of Time and have noted dozens of errors (the usual OCR errors mostly). I have sent the list to the publisher, but they haven't even acknowledged it yet... When (if) I finish the series, I'll post the full list.