Do I have shares in this company????I cant really remember. What...

Do I have shares in this company????
I cant really remember. What has happen over the last year and a half, a lot in my life, I am getting older and forgetfully. People still get paid to run this company?? Why. It all a bit hard to think about. I always plan ahead to minimize my TAX, could someone please tell me which financial year I can write off the 17K in put into this company (just looked up my old records). Also what they do, Needle things, Coal or just sitting around thinking of things. Can someone HELP!!!!!!!!!!!!!!!!!