I bought new curtains - super bargain pencil pleat ones. Curtains arrived and I realised they didn't already have the pleats in them, but you need to pull the tape to required size and then use appropriate hooks. But, try as I might, I just don't seem to be able to find pencil pleat curtain hooks.

As said, I'm well and truly stumped. I bought a pack of small plastic hooks, but they don't fit through the loop of the rings that go onto the curtain rail.
help anyone?