Re: How can I get a black plastic mark off my wall.?
Welcome to the Bunnings Workshop community @McT. It's great to have you join us and many thanks for your question.
I'm sure some photos of the mark would assist our member in giving some great responses. Sometimes marks on walls, especially those created by scraping the paint, just can't be removed from the surface. They've essentially embedded themselves into the paint. If that is the case repainting the area it the best option. If you take a sample of your paint into a Bunnings store then a team member can colour match it for you and create a sample pot of paint for the repair.