Vauxhall Tigra battery light flashing and airbag light on

Battery light could be alternator not charging / faulty .You need to get it checked out with a meter .Airbag light could be sensors or wiring under seat .

I have tested the alternator and battery and all is working ...battery light still on and had to have a jump start this morning. Any help would be much appreciated ...many thanks

You need to load test battery to see if it has any weak or dud cells .If so it wont hold a charge and will drain overnight .Putting a meter across the battery wont tell you that .The likes of Halfords or a good accessory shop will test the battery while you wait , usually foc .If everything o.k check for a parasitic drain on electrics .The fact it starts o.k with a jump start more or less suggests / verifies the battery or the alternator is failing to maintain the battery .