Hi due to the way they sit to make them sit right you really need a tool which you crimp it back into shape.
Currently due to low demand the tool is expensive, I have one myself and it works reasonably well (you still see a fine crease in the slat, but it does sit back perfectly and makes the blind usable again, without having to remove it.
Here is a video showing how the tool works, the cheapest place I have see the tool sold is here, the advantage being if it doesnt work you can send it back and get a refund from Amazon.
Let me know if you need any further assistance or advice regarding sorting out your bling.
Hi, I just wondered if you need any further assistance, and would appreciate if you could rate the service received to date.
Please let me know if you require any further guidance.
In the mean time please rate the service received to date.