Two businesses registered by mistake

Hi,

I have set up clearbooks for sole trader. On my HMRC account it shows 2 sole trader accounts registered for MTD as I used a slightly different name when setting up the clearbooks account. Should I just change the clearbooks account details to match the HMRC account name exactly? Will this then sync with my existing sole trader account active for 40 odd years OR should i cease that business account on my HMRC page and stick with the name I set up with in clear books. For clarity i have only ever had one sole trader account - HMRC assumes 2 now because of the slight difference in name. TIA Stephanie