Fixed Internally Incorrect description on Overseer's Mercenaries Training Reduction [15 day]

I received this potion (Overseer's Mercenaries Training Reduction [15 day]) from an overseer mission today and although the title of the item says "15 days", the description says:

"Reduces Mercenary Training by 10 Days"

so I am not sure which is the correct value.

Thanks,
Cooriador

The same thing appears on 15 day mount training reduction.

I've verified the potion is at the very least good for more than 10 days... and I assume it's 15. I used them twice today for rank 11 and 12, and they completed a (first potion) 10-1/2 and then (2nd potion) 11-1/2 day training time immediately. I still hope they fix the description, because those inconsistencies give my OCD the willies

Just occurred to me to check the logs, and it does say, "Your mount training time has been advanced by 15 days."

if you have 4 days left to train and you use a fifteen day potion, does it just advance you one level or does it use up the remainder on the next level?

It just advances you to next level

Yes, mount and mercenary potions only advanced you to the next level.
But familiar potions give the remaining points into the next level.