hi, i've been buying and selling from factions but have yet to get a single reputation point, what are the coin thresholds needed to get points?

No idea since I got max level with every faction with only one caravan trip selling gold/jade statues or silver cutlery.

Mods seem to be interfering with the Factions & Trade update so if you have them you might try removing them.

100s in trade (buying or selling) earns 1 reputation point.

i don't have any mods, i'm just playing base game sandbox mode, i've been buying and selling with the factions but the rep doesn't increase (it is however from a saved game before this change if that matters?)