Quest Issue: A Sarnak Imitator not giving sack

[Rygar]

Read the details from the bug research / implementation:

if u need a sack from those 4 quest npc, 1st make sure u have TWO open inventory slots. give him/her the jeb's seal, then u will 1st receive the seal back then the sack. thats why u need 2 inventory slots open. they no long give out sack when u say i need a sack.

Sounds like you aren't handing in the seal and just saying the phrase