For the 2nd time in less than 6 months, the front brakes inside piston has got stuck and wont pop out. Last time I ended up having to get a new calliper as I couldn’t unstick it.

I love the brakes, but I can’t afford £30 every 3-4 weeks to keep them running! Is there an alternative that allows the stripping down of the calliper for a re-build/fix? Is it worth complaining to someone? (CRC?)

If the caliper is less than a year old it should be covered under warranty so return it to where you bought it.