Thanks for your question I am Sam and I am one of the UK tax experts.
Why has your accountant not attempted to negotiate a time to pay arrangement with HMRC for you, as this would then allow HMRC to formally accept the figure each month, that you are able to affird, without constantly harrassing you (via your accountant) or threatening to remove goods to meet some of the tax due.
What was the last agreed arrangement with HMRC regarding this debt?
Are you able to borrrow any money towards it - or pay some via a credit card.
I need to know what has (if anything) put in place so far.