MexGroup swindles my profits

So I got an email in September that a whole batch of trades is being canceled by MEX AU, the total amount being EUR 11,766.77 on one account and USD 119.54. The interesting thing was that as soon as MEX AU canceled those trades, it also canceled almost all my profits going back 6 months. I attribute this to it not being strictly regulated so they think they could do whatever they want and cancel profits as far back as they decide