Trumf is now sending bonus-checks to use in the shops unless you opt out!!! Opt-out can be done here: https://www.trumf.no/Min-Side/Mine-bonussjekker/
Thanks for this warning, although it appears the bonus-check can also be converted to SAS points. Also, they are now offering an additional bonus for converting to SAS points until 31 March: https://www.trumf.no/Min-Side/Mine-artikler/Fa-ekstra-EuroBonus-poeng1/