Not Earning Ranked Points!

For the Last couple days I have consistently played ranked and not earned any points whatsoever! 

It started after I won 2 races back to back in Brazil I rose to 52 points. Then I logged on the next day and they were all gone back to where I had been previously on 8 points. 

Come the new week of Ranked I have just finised 2nd in Mexico and yet still have no ranked points. Despite the fact I started 4th in a Lobby of 12.