Adding a <script> to Email Template

Hi all.

I am having trouble getting a <script> to appear and work in an email template. This is a simple pmse_Emails_Templates template, but when I add the script in, it just simply does not work.

I am trying to follow the examples on https://support.trustpilot.com/hc/en-us/articles/221618467-Add-a-Structured-Data-Snippet-for-Automatic-Feedback-Service-AFS-#customer-name-reference-2 but none seem to work properly, I've tested...

Direct paste into source code (Gets stripped)
Commented out (Gets stripped)
Front end (Div and Styling is added)

The example I am doing is:

---

<script type="application/json+trustpilot">

{
"recipientName": "{::Accounts::first_name_c::}{::Accounts::last_name_c::}",
"recipientEmail": "{::Accounts::email1::}",
"referenceId": "{::Accounts::hh_id_prefix_c::}",
}
</script>

---

Does anyone have any ideas?

Thank you,

Daniel