Disputing *****ulent policy deductions

I have made a review against old Mutual since 8th of August submitted wot was required from me. Was told I will get feedback within 10 working till date no response from old Mutual in fact I am the one that must call and repeat myself constantly. I am disputing 3 extra policies that has been deducted from my payslip and I have requested full refund to date no response from old Mutual after I send them proof of which policies I am disputing. This is really not good for my health as I have high blood pressure and I am stressed about all these deductions going of on my salary it is affecting my financial well-being