twas 5 month entry he mentioned as non o is 90 days You know you are a first class dick be a pleasure to add you to my blocked list you are very welcome to do the same
Are you on OA visa or O visa? What date does your entry stamp say valid to.
Only reason i can think they would say only 5 months is if you are on OA visa and only have 5 months of insurance. 90 days is dues 90 days after entry there is a bit of leeway either side. Personally i think if no further interactions with immigration dont bother with the 90 day reporting