When Juan had touched the medallion to the cloth Nikola asked if she felt a shock but Juan said "No there was nothing." Nikola said "Try it again there should be a static shock to indicate that the medallion worked.
After Juan had tried numerous times with no shock Nikola had her put the medallion on the table away from any item of clothing.
Nikola then called in one of the men that worked in the club as he said "Well there seems to be something wrong, so I'm going to look it up to check on all the problems that could come up with this thing, until then the two of you can make yourselves comfortable in the other room." It that he indicated the man at the door "Go with him and he will look after what you might need until I can check things out."
At that point Nikola picked up the medallion by the chain and went to look up everything he could about it on the web.
After a while he found out that there should be only two things that would make the medallion not work and he was going to have to wait until Kurt's time was up to make the next test.