Contacting HMRC? New extended opening times | Low Incomes Tax Reform Group
HMRC Customer Support on Twitter: "@ClaireTBR The contact number for the national insurance number - registrations helpline is 03002003500. Nataysha" / Twitter
Examples of HMRC related phishing emails, suspicious phone calls and texts - GOV.UK
How do I contact HMRC about tax credits? | Low Incomes Tax Reform Group