Yes explain it all to them and see what they say. I'd record a screenshare using something like Loom or meet them on Zoom and show them examples such as your struggles with the PDFs having multiple hands involved. Can show her your original work, then the persons edits and then how you had to redo everything again.
You can also point out the various things that are messed up on their website and how it takes you longer to do anything.
I find explaining things in video gets the point across more effectively then over the phone or via email.