I have tried a number of times to contact Companies House last week and also today but am unable to get through. It rings a few times then then cut off.
I have 0303 1234500 on our speed dial and have always got through before. I cannot see any notification from Companies House of a phone number change etc.
I just tried (just out of curiosity really) first time it was as you said second time I got through okay
Just suppose you gotta keep trying until you get lucky
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Doug
These are only my opinions of how I see things and therefore should not be taken as advice