I'm Sorry to hear this. It's crucial to ensure the correct application conditions are followed, especially in cold weather, which significantly affects the adhesive performance ofwel the pads. If the pads were applied during a cold snap, this could be the reason for them not sticking properly. Refer to this https://articlescad.com/bekijk-dit-rapport-over-3mvhb-primer-en-wrapfolie-371385.html