Vance said that if they are going to try to deceive us, they will discover that the negotiation team is not so receptive before he boarded, according to his statement. The identity of Vance and his specific role in the negotiations remain unclear. It is also unknown what negotiation Vance is referring to, including its context or purpose.
Additionally, the parties Vance addressed as 'they' have not been identified. The location and time of Vance's boarding have not been confirmed.
If they are going to try to deceive us, they will discover that the negotiation team is not so receptive.