Servers usually have a "multi-connection" limit. If 500 people try to use the same MAC address simultaneously, the server will either block the address or the stream will suffer from constant buffering.
Accessing premium content via unauthorized portals is a violation of copyright laws. In the UK, the Federation Against Copyright Theft (FACT) actively pursues the providers of these "free" services. FREE UK STBEMU CODE 01/11/2022
The date in your subject (01/11/2022) is the most critical factor. In the world of IPTV: Servers usually have a "multi-connection" limit
UK Internet Service Providers (ISPs) like Virgin Media, Sky, and BT are very aggressive in blocking IPTV portals, especially during Premier League matches. Users often require a VPN to bypass these blocks. In the UK, the Federation Against Copyright Theft
Many sites promising "Free STBemu Codes" are laden with aggressive ads, trackers, and potential malware downloads.