That's the same part number I've found.
https://www.ebay.co.uk/itm/134839609703?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=mHShiJT5Ts2&sssrc=4429486&ssuid=IE07kO4STZy&var=&widget_ver=artemis&media=COPY
So sorry to hear about this Steve I know how it feels as the same thing happened to my wife's astra (also electronic handbrake) on our wedding day! It rolled off into another car ina carpark as she went in to get her flowers.