Disappointed and disgusted in Long Term Investment Plan

My Group Schemes Long term investment plan started on 01/12/2010 due to end 01/08/2020. In July of this year I requested a breakdown letter of my investment (REF:GSS ********** ). To my absolute disappointment and disgust I have discovered that the investment has in fact lost money and not accumulated any growth. The bonus that is paid every year is significantly lower than the fees deducted on a yearly basis by Old Mutual. According to the breakdown Old Mutual have been charging me a whopping 11.50% percent fees to manage my investment.