HMRC Tax refund cheque on updated postal address

HMRC has sent me tax refund cheque to my old UK address. I am not in the UK at the moment, so I have updated my postal address on the HMRC portal. I request you to resend the cheque to my updated postal address. My relatives can help me by depositing cheque in the bank. I am not in a situation to call HMRC from abroad. I am unable to contact HUMAN advisor directly via webchat and the automatic chatbot is not helpful. Kindly advise the next steps.

Request any concerned person to respond asap.

Hi,

If you are unable to call you will need to write to us,

https://www.gov.uk/government/organisations/hm-revenue-customs/contact/income-tax-enquiries-for-individuals-pensioners-and-employees

Thank you.