Help with Amazon listing issue

We have a problem with the brand name appearing on around 100 of our Amazon listings. We are now a registered brand, when we first uploaded our products we were not. We have been trying to fix the brand name with Amazon for some time and have instructions from Amazon on how to fix it, but would like an Amazon listing expert to take on this task. We are looking for someone very familiar with Amazon to correct the issue.

The problem is, our listings should appear with our brand name Christmas Cart UK Personalised Gifts & Keepsakes. like this https://www.amazon.co.uk/dp/B07KMCMNS6?ref=myi_title_dp&th=1

However many of our products appear like this https://www.amazon.co.uk/dp/B07D6RFKGV?ref=myi_title_dp

We have attached the ASINs affected by this issue. We want someone to take on the job and follow the attached instructions in the attached to rectify the issue on all listings