Left front indicator not working

Hello, We have a problem with our left front indicator. Bulb is fine, cleaned contact points, repaired a worn cable. Still no luck, any ideas would be welcome. Si

have you checked cable for continuity and that it is getting a voltage when flasher is on.

Apologies for taking an age to respond, have found the problem. Their are two spade terminals that connect to the bulb holder and one had slipped off, it seems that this may be a regular thing to check for any future problems as it came off the other side today when doing a bulb replacement.

Thank you for your help.