CP268 tells you we made changes to your return because we believe there is a miscalculation on your return. You can get in-person help at your local IRS Taxpayer Assistance Center.Call for an appointment after you find a Taxpayer Assistance Center near you. Get your refund status. Use Form 843 to claim a refund or request an abatement of certain taxes, interest, penalties, fees, and additions to tax. Locate the closest Taxpayer Assistance Center to you. We pay benefits only if you are eligible on all requirements for each week you request payment. Completing an online form and writing a signature on a computer. The federal government should send an offset notice to you when your stimulus rebate payment has actually been intercepted. First things first, taxpayers will need to call 8445455640 to schedule an appointment.