Heya all. I talked to Butch and got the quest for the missing caravans. He mentioned that since I work for him now I get 15% discount from Beth. Talking to her and selecting the option "I want to buy" or "I want to sell" triggers a mention from her that I get a 15% discount. However she's the same exact price as any other vendor.

I am on the base GoG version; no mods or any fan-made patches or anything else. What has gone wrong?