I'm sure 3 royals in a week is nothing for a large casino with many customers. Just so happens he was playing for higher stakes than most others were....Why would this raise a flag?
Look at it on the other hand..Are they going to audit losing accounts that never recieved a royal in order to refund their money?
They went well over an acceptable time frame to give this player their winnings. A week, maybe 2 at the most would have been sufficient.
As far as the software provider getting involved...well, they 'deal' out millions of hands a month on
VP alone. If there were any "glitches" in the software, it would have been well known before now.