fix duplicate H2

fixed

Author: vac0224

articles/communication-services/concepts/includes/sms-ten-digit-long-code-pricing.md

@@ -75,6 +75,4 @@ A carrier surcharge applies to messages exchanged using 10DLC numbers. This surc
 | C-Spire (Outbound) | per message segment                   |  $0     |
 | Commnet (Outbound) | per message segment                   |  $0     |
 
-## Related articles
-
--  For more information about message segments, see [SMS character limits](../sms/sms-faq.md#what-is-the-sms-character-limit).
+For more information about message segments, see [SMS character limits](../sms/sms-faq.md#what-is-the-sms-character-limit).