You suspect your M3U URL is compromised. Can you get a new one? Some resellers say yes instantly. Some make it difficult.
Here's the security feature. A British IPTV reseller using modern panels allows self-service credential regeneration. You click a button, get a new M3U URL or password. Old credentials stop working. Simple.
What actually works for security is resellers who make regeneration easy. If your credentials are leaked, you can fix it in seconds without support involvement.
I posted my British IPTV M3U URL in a screenshot by accident (redacted poorly). Realized my mistake. Messaged my reseller. He regenerated my URL within 5 minutes. Crisis averted.
The pattern that keeps showing up is that IPTV reseller UK operators with self-service credential regeneration are rare but excellent. Most require support intervention. Some can't regenerate at all (fixed credentials - avoid these).
Honestly, ask your IPTV reseller UK : "Can I regenerate my M3U URL or password myself?" If yes, learn how. If no, ask how long support takes. Under 1 hour is acceptable. Over 24 hours is concerning.
That said, fixed credentials are insecure. Avoid resellers who can't change your credentials at all.
In most cases, British IPTV resellers with easy credential regeneration provide better account security than those without.