Challenge dungeons (medals problem)

[Kuula]

So i got a problem that from date when they relesed challenges, got on few gold medals. Now on some characters they reset daily and on some they don't reset at all. Like 2-3 weeks can't do the dungeon. I mean i can but w/o valors :)
Any1 has any idea how to fix it?
Made ticket but gm didn't want to help me (reset it or whatever).

[DbaPM]

VP are given only for doing challange mode for the first time , they are not rested daily or weekly.

[Kuula]

then why every1 else can farm it daily xD

[DbaPM]

They do it on other alts , but also you can do it over and over to get better times ofc

[Kuula]

nah man, medals resets daily for some ppl, not on other alts.