Update advertising SMS shortcode copy to 5000990009.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/super-admin/src/pages/BusinessesPage.tsx

@@ -2078,13 +2078,13 @@ export function BusinessesPage() {
             inputMode="numeric"
             value={smsSenderNumber}
             onChange={(e) => setSmsSenderNumber(e.target.value.replace(/\D/g, '').slice(0, 16))}
-            placeholder="e.g. 5000123456 (empty = 9000590009)"
+            placeholder="e.g. 5000123456 (empty = 5000990009)"
             disabled={smsSettingsSubmitting}
             autoComplete="off"
           />
           <p className={styles.helperText}>
             Used for free-text customer SMS. Leave empty for Meshkee advertising line
-            9000590009. Verified templates always use 5000110005.
+            5000990009. Verified templates always use 5000110005.
           </p>
         </div>
         <div className={styles.field}>

apps/super-admin/src/pages/SmsTemplatesPage.tsx

@@ -194,7 +194,7 @@ export function SmsTemplatesPage() {
           <h2 className={pageStyles.pageTitle}>SMS Templates</h2>
           <p className={pageStyles.pageSubtitle}>
             Review templates submitted for verification. Verified → 5000110005. Pending /
-            free → 9000590009. Variables: {variablesHint}
+            free → 5000990009. Variables: {variablesHint}
           </p>
         </div>
       </div>