Could Switch break my Plat discount?

So. I often play on switch when im at work and few days ago (i think 4 or 5) i got -50% discount on switch. And ofc i wont but plat on switch and still wanted to get -75% cus i heard from few forums that few days after not using -50% you have bigger chance of getting -75%. Is there a chance that getting -50% on switch disturbed the "clock" and ill have to wait longer for that 75? Cus good few days has passed and i still didnt get that discount.

Im relatively new (20 days of playing) so i havent figured it out yet.