Contacting HMRC

Get contact details if you have a query about: 
Some of HMRC’s helplines use speech recognition software. 
You can also use HMRC’s Welsh language services. 

Make a complaint 

Contact the relevant HM Revenue and Customs (HMRC) helpline if you’re unhappy with the service you’ve received. HMRC has guidance about how they will deal with your complaint and what happens next
There’s a separate process for: 
Further information on Contacting HMRC can be found on GOV.UK's website.