the answer from the telemarketing is, the status night is added on the next day of the payment done.. which means someone can get platinum (60 status night) only by subscribing accor+ (last year it was added 20 on Jan25 and 10 on Oct25) if renew 30 will be added on dec25 - the telemarketing said some people already got the platinum status from this...
but i still asking I want it to be added on January although I paid it on Dec (to get this 4000 reward points), so same as the FAQ in the accorplus website which is "first day of new membership year for renewing member" = 01/01/2026).. currently no conclusion yet..