New clutch issue

[Lfergs92]

Hi, new here and not very good with car stuff but thought pistonheads might be able to help. Got a brand new clutch fitted (3 piece according to mechanic) after old one went completely. I’ve had it back to the garage twice now as the pedal keeps sticking half way up, I need to hook it with my foot to return it all the way. Sometimes it gets jammed in gear and I need to stall it to get it back to neutral.

Mechanic has replaced the fluid and the spring, but still having issues.

Any ideas what it could be?