“HMRC has a set up a phone helpline to support businesses and self-employed people concerned about not being able to pay their tax due to coronavirus (COVID-19).
The helpline allows any business or self-employed individual who is concerned about paying their tax due to coronavirus to get practical help and advice. Up to 2,000 experienced call handlers are available to support businesses and individuals when needed”
Please see link for info https://www.gov.uk/government/news/tax-helpline-to-support-businesses-affected-by-coronavirus-covid-19