Honestly, the "are you sure?" popup in most IPTV Reseller Panel platforms is theater. I've watched a reseller accidentally delete a paying British IPTV customer because the popup said "Delete customer?" and he clicked "OK" out of muscle memory. No warning about outstanding credits. No "this customer has 8 months prepaid." Just gone. The panel had no recycle bin. No restore function. The customer's account, payment history, and watch preferences vanished instantly.
What actually works is a panel with soft delete—accounts move to "deleted" status but remain restorable for 30 days. Run a British IPTV customer deletion test through your panel. Delete a test account. Can you bring it back? Does the panel show you what you're losing before you confirm? One reseller I know requires typing "DELETE PERMANENTLY" before any removal. His IPTV Reseller Panel also emails him a backup of every deleted account. He's never lost data he needed. That said, most panels treat deletion as permanent by default. Ask: "What's your restore policy?" If the answer is "we don't have one," assume every click is final.