A customer who refuses to pay, or demands a reduction in price based on claims of non-performance by you or your company is an entirely different issue than late contract payments. In this situation, it is the customer who has the legal right to stop their end of the contract until you meet your obligations.
This course will help you recognize the symptoms of non-performance before they escalate, and offer possible remedies should you find yourself in this position.
Skill-Based Learning for Sales Professionals 