Wrong rewards in conquest

I reached more than 530 keyes in conquest. However, when claiming the rewards, I noticed I was being given rewards for 525 keyes, therefore getting lower stuff than expected.

I don't know how this happened, in the last week I sometimes got error code 9.0 when trying to claim the partial milestones, but didn't get it in the end, when I reached the golden crate at 530 keyes.