To avoid payment disputes is to meet payment deadlines. Listen to customer and client concerns, and deal with them before it escalates. It is significant to release pay before the due date. Late payments create mistrust and sour the relationship. Please don't take too long to respond to queries or concerns. Most importantly, all correspondence should be documented. The documentation must include the price and delivery timescales. But, if the issue cannot be resolved then you can take the matter to court.