I don't know where you're from Algol, but I am guessing UK or Europe.
I always used to ask for and get a copy of my LPC and OPC from the trainer who conducted the check with no problem, and when I left the last crowd I asked for, and was sent a copy of my training records and my personnel file. You should probably check with your union, and with your company or ex-company's HR department. I think that they are obliged to allow you to have copies of anything in those files if you ask for it. You shouldn't have to get a freedom of information request for this information. If you aren't a member of a union check with the CAB or an employment lawyer.
If is a case of getting a reference then your company should supply that on request from a prospective employer.