diff --git a/static/script.js b/static/script.js
index bd23317..2ffe7e4 100644
--- a/static/script.js
+++ b/static/script.js
@@ -845,7 +845,7 @@ class MailManager {
             : '-';
 
         const refundReceivedTime = info.refund_received === '1' && info.refund_received_at
-            ? fmtTime(info.refund_received_at)
+            ? `<span class="claude-badge claude-paid">${fmtTime(info.refund_received_at)}</span>`
             : '-';
 
         return `<td>${paidBadge}</td>