From 6.29 to 1.14 to 6.29 and clarity of Broker

Just wondering how a broker can go from 6.29 to 1.14 then back to 6.29. also to have 8 exposures to none in the same timeframe. I have a lot of money invested with this broker and would like some reassurance that my money is safe and this was a glitch this broker also transferred fund because the previous broker was sold of to SAEN. previous broker account was East Century, Dento Financial, Glluck and now SAEN.. regards Brad