You must submit the Employer Certification Letter as it appears in the template. Revenue will reject any requests with changes to the template.Note: You must complete a separate Form 3911 for each refund for which you are requesting information. You can find the CP or LTR number on the right corner of the letter. Sending an IRS audit reconsideration request? We filed a joint tax return. Our refund was decreased to pay my spouse's debt. Gov or call 1-800-TAX-FORM (1-800-829-3676). Why did I get less money in a federal payment (for example, my tax refund) than I expected? If you wish to appeal this proposed levy action, complete and mail the enclosed Form 12153, Request for a Collection Due Process or.