Builders dissolved company but continue invoicing us with VAT (never informed). They have not finished works and gone AWOL. We are owed 10k of works.

I am experiencing a very stressful situation. The builders we contracted to do the works at our property, which have been invoicing us with VAT recently went AWOL after we made the last payment, when digging we found out, they dissolved the company over a month ago and they have continued invoicing us (paid VAT) for the works since then (never informed us of this). After dissolving the company they started a new one with a similar name.

They did not finish the job and we have overpaid £10k of works not completed.

When searching online we found that is fraudulent to continue trading under a dissolved company (in the last invoices - after dissolving- the company number of the dissolved company still appears). And that they could face criminal charges for this.

Anyone experienced a similar situation? What can we do? We are unable to speak with them, do not answer to emails or calls.

CitizenAdvice feedback is that if they the dissolved company consumer act does not appl