[Fundamentals] Update delete-account.mdx (#19006)

Author: crwaters16

src/content/docs/fundamentals/subscriptions-and-billing/delete-account.mdx

@@ -4,7 +4,9 @@ title: Delete your Cloudflare account
 
 ---
 
-These steps do not apply to accounts under contract. Contact your Customer Success manager if you would like to delete a contract account.
+:::note
+These steps do not apply to accounts under contract. Contact your account team for more information.
+:::
 
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