Dark Sword

I got all the souls from ranking under 1000 to 200 and am currently letting my rank drop back over 1000 does anyone know if I'll still be able to get the soul rewardS for ranking all the way back under 200 or is it a one time deal?

Under 100.you can get souls and key also.

I'm not that good just yet. Also my daily reward for keys seems to be glitched I haven't gotten any keys for a mission complete in days