Contractor Among Contractors
Your options are limited.
Originally Posted by Glenzo
1. Pay what HMRC want now
2. Pay what HMRC want in 2019
3. Join a litigation group if there is one and perhaps pay in the future, perhaps not, but definitely pay fees
4. Join Big Group and seek a settlement in which case probably pay some tax and definitely some fees
You don't have to be invited to join Big Group. Just go to the page and sign up.
You generally do have to be invited to a litigation group but you have to find one first.