Hey everyone a few months back I turtled waxed my car was well pleased with it. I have a black SXi corsa 51 plate. This is my first car and me being slightly inexperienced allowed the tutle wax to go on my bumpers and plastic trims. I wiped it off at the end and thought nothing of it. However the marks are coming back all the time and I have the odd white patch in places, its not massively obvious but its annoying. We have tried blasting it off with a high power jet wash and scratching it with a nail brush but it just keeps coming back! Anyone got any tips on getting rid of it for good or have I ruined it!