Investors face 'heavy financial losses'
Fund suffered 1.1% loss over past three months
Higher levels of 'maturity and understanding' required
Firm gets backing amid fee structure criticism
Concerns raised following Equity Income fund closure
Investor urges fund group to be more cautious on promoting funds
Among the most shorted stocks in the FTSE 100
Group dismisses claims it failed in its role over Woodford fund
Downward revaluation of Industrial Heat