I have suffered with similar problem, once knocking patch off early on where Abbott kindly replaced free of charge and another 4 days from end where it was hanging on for dear life before eventually falling off. Considering cost of CGMs I bought a packet of those "Not Just a Patch" transparent patches from Amazon. Cost just short of £20 for 20 and apparently stay stuck for 10-14 days. I put the patch on about 4 days in and so far the last 2 have lasted until the CGM stops. They do stay stuck pretty good and although add on another quid to the CGM price I consider worth it as long as it keeps the patch in place which it seems to do.8.2 yesterday and 7.7 this morning ...have just managed to rip my sensor off on the doorframe of the cupboard I was cleaning . I knew there is a reason I hate cleaning .