Incorrect billing

The problem started after my anniversary with Liberty: R471.36 anniversary new amount effective on 1st July 2015. Quote signed after increasing my husband's policy R503.23. Liberty send servicing doc with an amount of R572.52 is due never enquired just increased monthly stop payments. November 2014 received invoice of R723.40 to which I contacted financial planner and was informed it would be sorted out. To date the amount keeps going up and I keep getting confirmation that it's been resolved and now it shows like I am paying a month behind instead of me paying upfront like it used to be. I want them to resolve the query and make sure that everything is up to date. If they are unable to assist, Liberty should give my entire premium back to date without any penalty fees as the problem is on their side not mine. I was quote all different amounts and financial planner confirmed that my payments would be R503.23. i want my premiums sorted out or money back with no funny SARS stories...