Keep a small reference sheet
Write down your bank’s support number from a trusted source, your insurer’s claims number, relevant account reference numbers and emergency household contacts. Include utility-provider details so you are not relying on an inbox you cannot open.
Protect the document
Do not write card PINs, complete payment-card details, passwords or one-time codes on an everyday contact sheet. Store sensitive documents securely and limit copies to what you need. Consider who can access the place you choose, particularly in shared accommodation.
Plan for regular payments
Know which essential bills are due soon and keep enough information to contact the provider if disruption causes a problem. Keep a record of communication and any extra costs. A paper list helps you contact the right organisation; it does not mean you should try to pay a bill again without checking whether the original payment succeeded.
Review it with your kit
Update phone numbers when providers change. Replace obsolete copies rather than leaving contradictory sheets in different places. Tell a trusted household member where the current version is kept.
Financial Ombudsman: bank outages and IT failures ↗
Check the linked guidance for updates. Follow local instructions during a real incident. This site does not provide live emergency information.