Fiat Brava immobilised engine

My car was left in a garage for 6 weeks and then wouldn't start. Recharged battery and since then have had erratic problems with it just not starting at
all - nothing and then half anhour or a day later it's all good. Now the car won't start or turn any electrics on and I can't get my blue key out of the ignition. Is it something to do with an engine immobiliser. I'm STUCK !
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.