Can they simply steal my comissions?

I was promoting a new product in CJ.com
after generating 900 lead, i suddenly surprised with the word "Unqualified leads" and they reserved all the commissions
it seems that it happened with all other affilaite because i surprised that the company data (CTR, EPM, ..ETC) set to "new" although it was showing other figures few days ago, so is that mean that all the leads that generated by other webmasters has also been reserved.

there is no special conditions or restricitions that i could violate, and the applications of the lead is so simple and one of my friend has applied once and he using the service
so

i don't know what to do, i contacted the affilate manager but as usual no reply

my quisition is, can a company just let people promote its products, then after one month simply saying "all of them are not qualified" an pay nothing
what rules governes this issue and how can we protect our rights if CJ says it the merchanet desicion