I find out two month...

I find out two months ago that old mutual is deducting R500 from my pay slip than went to the nearest branch only to find out that it was a 1M life cover that I never signed up for even the signatures are not mine, they advised me to launch a complaint and did it 2 months ago and up to now they still deducting they told me they will stop once they have finished with investigations of which I don’t know how long their investigations takes