public static void SetAgentAutoBid(string slackUser, int amount, SlackClient agentClient)
        {
            lock (ServiceLock)
            {
                using (var db = new SlackLeadsBidderContext())
                {
                    var agent = db.Agents.FirstOrDefault(e => e.SlackId == slackUser);

                    if (agent == null)
                    {
                        agentClient.PostError($"No agent configured for '{slackUser}'");
                        return;
                    }

                    agent.AutoBid = amount;
                    db.SaveChanges();

                    agentClient.PostOk($"You autobid is set to {amount} for next auction.");
                }
            }
        }