I'm very interested to see the outcome of this. Did you do a stopover in AUH?
The reason I ask is that the T&Cs on the velocity website say
"*When you purchase a single fare with Virgin Australia, Pacific Blue or Polynesian Blue and there is a via point which does not involve a stopover, the Status Credits are awarded on the mileage from origin to destination, e.g. ABX-BNE via SYD will receive the Status Credits for the distance and fare type flown based on ABX-BNE."
So you may not get anything for AUH to FRA leg as it is considered 1 ticket. If so, it should be 150sc total for the one way SYD to FRA in Y+ ..... But if you had done a stopover in AUH then you would get 120scs then an additional 20, 40 or 60 depending on your fare class (discount Y, Y or Y+ on your ticket.).... So it's a little odd that you have already been credited 120 unless you did a stopover.....