Summary: The above is important because of the timing. After 5+ years of pension fraud at Sirius 'Open Source' the company enrolled staff without paperwork/signatures and barely with any consent (in late 2016); to make matters worse, a few years ago it upped staff contribution levels without increasing its own, in effect forcing staff to send even more money (one's own money, not the company's) into this dubious pot with uncertain future.
For over 4 months already their facilitator in London has been under investigation by British authorities because of what's being done to my wife and I