Though Ves was incredibly annoyed that the Larkinson Clan was on the receiving end of Zachren Bilitsa's tough negotiating stance, that didn't prevent him from employing the same strategy!
The House of Barach was clearly in a worse negotiating position than the Larkinson Clan. Ves owed nothing to the designer house. He also didn't require its services that urgently. That meant that he could completely gain the upper hand in any talks.
Ves had employed a deliberate strategy of undercutting the Barachs and emphasizing his own position of comfort. He did not expect to achieve instant results today or even the next week because of his firm and unyielding stance.
Under normal circumstances, the House of Barach would never give his offer any serious consideration!