As well as trying the “check service,” weblink (at the top of this forum board), there is also a Service Status number - 0800 561 0061 - which usually tells you of more local issues down to postcode level (that might even not yet be listed on the Service Status web page) - that may give you more info.
If nothing shows on there call it in as a fault (on 150 VM line - or 0345 454 1111 others) and see what they say when they test your connection and if possible, get a fault reference number. After all, if customers don’t report faults, VM don’t know about them.
Be patient as a lot of overseas call centres are in lock-down - best chance of getting a UK one is calling between 08.00-09.00.
--------------------
John
--------------------
I do not work for VM. 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 +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.