My Facelift pole has started doing exactly the same thing. I noticed that the clamp slot was completely closed up, so tightening the clamp bolt was making no difference. What Ive done to make it last a bit longer is: Take the end section right out of the 2nd section. Take the bolt out of the clamp of the 2nd section. Get a rough file and file the clamp slot. You can keep putting the end section back in and trying it. When you do this look and see where the faces are touching so you know where to file. I only did mine this weekend but it is loads better.
Mick