I had my own Ltd personal services company for many years when I was working as a contractor. In 2019, I decided to close down my company since I was working in full time employment. Soon after I was made redundant from my job and got another job as a contractor and opened a new company, since my old company name was available I used the same name for the new company as the old company, but they are both separate companies with separate company registration numbers. I recently completed a job for a client and they are refusing to pay VAT, because they say my company has been struck off on companies house records, but they are looking at the old company. Even though I have provided them a valid VAT registration certificate and COI certificate for the new entity. Can anyone advise what I should do? Seems I have a battle ahead to get the VAT from the client and legally I must charge VAT and client cannot object to paying VAT.