Partnership Name Change

I work for a company that has a partnership in the UK. The name of the partnership has changed from when it was originally created, and the name change was submitted to Companies House and is correct with Companies House. Despite seeing on one uk.gov webpage that Companies House informs HMRC of name changes, it appears that is not true. I've tried everything to get this corrected, logging in to the business account, I can only change the trade name, not the business name, despite being told otherwise. I've tried webchats to no avail. I've tried calling HMRC and only got through once and was told the trade name and business name are the same. Not true, I have a VAT certificate to prove otherwise. Any other suggestions for how I can get the name changed to the correct name?

Having had the exact same issue - as a tax agent acting for clients - , I can confirm that there is a known glitch, HMRC systems do not always pull the information from Companies House. I can also confirm that you cannot change the company name via your government gateway as the gateway ONLY takes the name change from Companies House and if that automated pull through of name change isn't happening because of a database issue, then you cannot change the name via the gateway. You can't change it using VAT484 form either as this form has been withdrawn from the HMRC website and you can call and ask for a form to be posted to you but that will be slower than the proposed solution. My only solution was to call the General VAT helpline, I spoke to someone who had actually heard of this error before and she kindly put my name change request through to a specialist team, that change was then made manually by this specialist team, you can't contact them directly, but the General VAT helpline should be aware of the issue and be able to escalate the matter. The helpline staff cannot do the change for you, they can only pass your request to the specialist team. Make sure the VAT helpline gives you a customer reference number so that you can chase this up if not resolved within 2 weeks. Be warned, after the name was changed on the VAT registration/gateway, the manual changes made by the specialist team did not extend to EORI number, so if you have an EORI number then you will need to email the EORI team separate and ask them to amend the EORI number to reflect your new Partnership name, https://www.gov.uk/government/organisations/hm-revenue-customs/contact/vat-enquiries

Hi,
The name of the business will only change if the Corporation Tax Department has also been informed of the change and if it has the VAT system should update within 15 working days.
If you have updated Corporation Tax and 15 working days has passed then we will need to complete an internal referral to resolve this. If this is the case, then please contact our VAT team:
VAT: general enquiries
Thank you.