Carex E-Z Lock Raised Toilet Seat With Handles

I bought this for myself because I was having hip surgery.. I installed myself and I felt it was secure until I actually had to use it. In the middle of the night I went to the bathroom and when I sat on it it slid off to the right luckily but not luckily landing me on the floor! The toilet is next to the shower with very little room between the glass doors and the toilet. I could have crashed through those doors and gotten very badly hurt. As it was I am very bruised and sore from hitting the floor with my shoulder. I am 72 yrs old and I could have broken bones on top of a serious surgical procedure that I just got home from! This thing should be taken off the market before serious injuries occur to others! I want my money back and you are lucky I’m not suing the inventor, the manufacturer, the seller, and Amazon for selling such an unsafe product!!!