As well as trying the “check service,” Area status webpage" (link at top right of this forum), also try the “free” Service Status number - 0800 561 0061 - which usually tells you of more local issues down to postcode level (that may not be listed on the Area Status web page which usually covers >1000’s of customers) - that may give you more info, but even that wont cover problems affecting just a few customers.
If nothing shows on there, try calling it in as a fault (on 150 VM line - or 0345 454 1111 others) and see what they say when they test your connection. If they say it’s a known fault, get a fault reference number
The UK call centre is still picking up and calling at 08.00 gives the best chance of getting through quickly, although I got through recently in 20' at ~1pm midweek.
You can also text them on 07533 051809 include account name/number and what the issue is – replies may take longer though.
Or, a VM person should pick this thread up as soon as they see it and be able to help but it will be a few days.
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John
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My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.