I'm going to say this loudly for the people in the back. Do not pay for a full year upfront from a reseller you haven't tested.
I've seen this story too many times. Someone buys a 12-month plan because it's "cheaper per month." Three months later, the reseller is gone. The money is gone. The channels are gone.
A confident British iptv reseller will offer monthly, quarterly, and yearly options. But they won't push the yearly one hard. They'll say "start monthly, upgrade later if you like."
The British iptv service I trust now took six months to earn my yearly commitment. I paid monthly at first. Then quarterly. Only after a full year of reliable service did I buy the annual plan.
A pushy IPTV reseller UK who insists on yearly payment from day one is either desperate for cash or planning to exit soon. Neither scenario ends well for you.
Pay monthly for the first 3-6 months. Consider that your testing fee. If they survive your testing, then talk about annual discounts.
Your money is safer in your pocket than in a stranger's server fund.