Please note that this forum is not Microsoft support, this is a user-to-user support forum. Therefore, I cannot directly escalate this for you. However, I can guide you how to contact Data Protection team.
Hi @SVH21
In this situation, you will need to contact Data Protection team. They can help you regain access to your trial tenant.
Please visit the following page and reach out to phone number via: Customer service phone numbers - Microsoft Support
From what I know, you will need to get past the initial AI system to reach the live support team. You can refer to the guide below for tips on how to get through more easily: 
Please try and let me know how it goes.