I am writing to inform you that I disagree with all debts you are collecting on or are placed with your company, in my name. These are all free sources of collection demand and response letters.Below is a sample, fillintheblank letter that you can use as a guide for disputing a debt with a collector. 4. Write a Letter: Respond to the collection agency in writing, keeping a copy for yourself. Try to work out a deal or payment plan. Debt collectors should send you a debt validation letter you can use to verify unpaid dues. If you hire a lawyer who knows what they are doing, you can often get the case thrown out. Here's our 50-state guide on how to respond and win in court. Use SoloSuit to respond in just 15 minutes. After drafting your demand letter, it's a good idea to let your debt collection lawyer review it before being sent.