A Housing Benefit overpayment occurs when you receive more benefit than you are entitled to, often due to changes in your circumstances or errors in the assessment. If you receive a notice of overpayment, it's important to review the details and understand why it happened. You may be required to repay the excess amount, and you can usually appeal the decision if you believe it's incorrect. For specific advice tailored to your situation, consider contacting your local council or checking the official gov.uk page for Housing Benefit guidance.