Estate agent Max is unreliable and does not honor ...

Estate agent Max is unreliable and does not honor agreements!
1st bid was made on Wednesday, he would return to it no later than Friday. 2 weeks later I saw a missed conversation when I was on vacation in a different time zone.
Upon return to the Netherlands, Max was informed about the status of the bid. He would contact the seller and return to it the next day at the latest.
In the meantime 12 days further and nothing heard yet !!!
Very lax and unprofessional attitude !!