A person who seems to have all of the answers, usually isn't listening.

Trust is not an important element; it is THE important element in any LONG TERM success with anyone or any company.

People don't want to be sold! People want to buy!

The best way to do business with a liar is confront them with the truth. Tell them that you do business as a partner. If your lying customer still can't see the light, tell him that you may not be the best choice for business, and that you think you have someone that can serve him better. Then, refer him to the competitor that you hate the most.

Some people serve with pride - because they 'want to' do and be their best; other people serve with disdain because they 'have to' do their job. Which person do you think will end up running the show?

Persuasion occurs when trust and confidence meet belief, risk tolerance, and safety.

The best way to apologize is to let the customer vent first. Don't interrupt, just take notes and make empathetic noises. You can even tell the customer that it makes you mad too. Second, ask the customer what their speed of need is. Tell them what they ant to hear. That you apologize, that you understand how they feel, that you are meeting with the appropriate people to get a resolve, and that it will be done in 24-hours.