Good Morning,
Thanks for your review.
I am sorry to hear how upset you are. Turtle Mat backings are anti-slip and engineered to minimise movement as much as possible; however we cannot guarantee there will be no movement as there are so many different floor finishes and carpet finishes and piles.
If you would like any further help with this, please don't hesitate to get in touch on info@turtlemat.co.uk and we will be happy to help.
Kind Regards,
Turtle Mat - Laura