Read the council’s decision letter carefully, as it should explain why your claim was refused and how to challenge the decision. You can usually ask the council to revise it and, if you still disagree, appeal to the First-tier Tribunal; this is normally within one month of the decision notice, although late appeals may sometimes be accepted. Provide supporting evidence, such as your tenancy details, income information or proof of circumstances. Check the latest guidance on GOV.UK or contact a local welfare adviser, such as Citizens Advice, because the correct process can depend on your circumstances.