Standard Banks no signed copy of policy.

Standard Bank FSP ( financial service provider ) sold a policy in 2006 which the policy company is Liberty Life. I received email from Liberty in February 2021 that my premium will increase in August 2021 ( almost double ). I then ask for proof of my signed policy as I was visited at home and myself and wife signed for this policy. Liberty reply that I need to contact Standard Bank FSP as they do not have signed policy's ( how the hell do they debited money then from my account then ) which I then said Standard bank did request the increase Liberty did and they must sort it out. Gregory Stephan Paulsen Provincial Manager at Customer Relations & Legal from Standard Banks Financial Consultancy replay on my request for a signed copy off my policy and said they don't have a copy and that they can't assist me anymore and that I may refer the matter to the FAIS Ombudsman. Liberty wasn't prepare to assist me, now a manager from Standard Bank is not prepare to assist me and now they want me to take this to the FAIS. I never miss one of my debit orders they never had to ask me for a payment now I am asking just proof of my signed policy ( a document that approve that I am a policy holder and that they can debited from my account ) that I can check that this is what was agreed on in 2006 as I can not recall that this was the agreement ( those days we signed for policy's not as per todays policy's where everything is discussed over the phone ), they must hide something and to me this is the reason behind this. My question is how is it posable not to have a hard copy of the original signed policy, I mean this to me should be by law kept till the last day of policy agreement or when it happens that there is a claim and then even 3 years after that claim date ore agreement. I am not happy with how managers from Standard bank treat there clients, and how it is posable to debited money from someone without signed paper work.