Phone line keeps hanging up on me

Hello I have had a very distressing tax bill which isn't right. I have tried to call to sort it out, but every time I do the sitchboard says 'we're very busy' and hangs up the call. I am happy to wait in a queue, but I need to talk to someone to sort this out. Being hung up on again and again when I am trying to sort it out is so distressing and unfair. Please advise how to talk to someone. I've been trying all day

Hi Nick Downes,
We are sorry for any distress caused in trying to clarify and resolve your recent calculation.
You can also contact us online by webchat - just go to:
Income Tax: general enquiries
And click 'Ask HMRC Online'.
You can also find our postal address on this page.
Thank you.