reaching tin elite on outbound CO-coded and -operated connecting to CO-coded and NW-operated flight. the return is about 4 days later, on CO-coded NW-operated connecting to CO-coded and -operated flight.

if i have not yet been upgraded in the system, will i still get the appropriate mileage bonuses later? could i request the mileage bonus after the fact, if the upgrade later reflects that it occurred before the return flight? if not, is there any way to expedite the mileage credit? since the flight is around Thanksgiving, i am not planning on any upgrades, but just want the mileage bonus if i am so entitled.

thank you.