Ask this: "Who on your team has actually been an IPTV reseller themselves?"
Here's the thing: an IPTV Reseller Panel built by developers who have never run a reselling business will have blind spots. They won't know why resellers need bulk user editing. For British IPTV resellers, a panel built by former resellers works better because it was designed by people who have been in your exact position.
I've watched a reseller struggle with a panel that had no bulk subscription extension feature. He asked the provider to add it. They said "we'll consider it." A panel built by former resellers would have had bulk edit from day one.
What actually works is an IPTV Reseller Panel whose team includes former resellers in product decision roles. A good British IPTV provider will tell you proudly: "Our head of product ran a 5,000-user service for 3 years before joining us."
Real scenario: A British IPTV reseller asked three providers about their team's background. Provider A: "Our CTO has 15 years of software experience." Provider B: "Our CEO used to resell IPTV in Manchester." Provider C: "Half our support team are former resellers." He chose Provider C. Every support ticket was answered by someone who understood his exact frustration.
That said, don't discount technical expertise. Former resellers who can't build reliable infrastructure are useless. The ideal British IPTV panel combines reseller experience with engineering excellence.
Honestly, ask to speak to the product manager. Ask them: "What's the one feature you added because you personally needed it as a reseller?" Their answer will tell you everything.