I haven't grinded SNC in a long time but this used to happen I would say one Monday a month.
The network always claimed the points would be corrected by the end of the week which at this time I was 25+ tabling during every happy hour and what they said was of course 100% all lies.
I'm not sure if the network even has the power to add or subtract points but if they do then they don't care about doing it because it would take them time to correct something they really don't care about.
The first time I got cheated I kept on contacting the network since they told me the totals would be corrected for happy hour missed points and to check back a day later,etc...
I got the run around so much that after the first time this happened I would send in one email or make one call then I stopped wasting my time on it since it's a lost cause
One support guy went as far as telling me everyone didn't get the points during that happy hour so he justified it as fair but he is completely clueless and ignorant to say such a thing.
The fact is if some people didn't play during that happy hour then all those who did would have gained ground on them on the leaderboard so it's not fair one bit.