Did read the t&c but cannot find that your status change is delayed, as it is with the points credit.

For example, my status changes on Thursday during an ongoing stay, then I have 60 status nights and reach platinum status. The system will of course have a delay in register my status change, but nothing in the t&c indicates that it should be a delay in honor my new status even if the system is slow. Quite the opposite, the t&c says clearly, with 60 nights stay - at any time- you are platinum. It does not say that it will be delayed. And of course, I can easily prove my new status. Did I miss anything in the t&c?

See point 8 in t&c:"8. STATUS Members can access a higher Status at any time during their membership if they reach the required threshold of Status Nights or Status points, as shown in the table below."