I create a lots of google ads account.

I follow this guide: <https://support.google.com/google-ads/answer/2424604?co=ADWORDS.IsAWNCustomer%3Dfalse&hl=en>

But it only tells you how to cancel google adwords ad accounts. So, these accounts still show on user profile account list.

I want to delete them, not just cancel them. How can I do this?