Good Afternoon,
I am sorry to hear you're unhappy with your mat. 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.
Sadly, I can't find any details that this issue has been raised to us prior to this review. If you could kindly allow us opportunity to discuss and put things right for you by emailing info@turtlemat.co.uk I would appreciate it.
Kind Regards,
Turtle Mat - Laura