This is weird, did you checked "Dashbord" -> "Activity" or you just didn't noticed any coin increase? I am asking because since a while, I don't know exactly, maybe a month or so we don't get "dust" anymore from every coin listed but we get the dividend in BTC, ETH and BCO only. Anyway I just checked my account and I got the last dividend payment on Dec 03.

The second possibility is that your staking period has ended and since your coins are not locked anymore you don't get any further rewards.

Cheers, G