Isolator (where present) is recommended for improvement. C3
Confirmation of indication that SPD is functional (651.4) is recommended for improvement. C3
There is no SPD (surge protection device). It wasn't required when that consumer unit was installed.
Unknown what the problem with the isolator is, but as it's C3 it's not dangerous.
For all socket-outlets of rating 32A or less, unless an exception is permitted (411.3.3) is in a potentially dangerous condition. Urgent remedial action is required. C2
For the supply of mobile equipment not exceeding 32A rating for use outdoors (411.3.3) is in a potentially dangerous condition. Urgent remedial action is required. C2
Socket outlets require RCD protection. Yours have that, although the type of RCD is no longer permitted. It was when installed.
For cables concealed in walls at a depth of less than 50mm (522.6.202; 522.6.203) is in a potentially dangerous condition. Urgent remedial action is required.C2
For cables concealed in walls/partitions containing metal parts regardless of depth (522.6.203) is in a potentially dangerous condition. Urgent remedial action is required. C2
Cables in walls need RCD protection. As with everything else, not required when installed, but is now.
It's an older installation that doesn't comply with things introduced after it was installed.
The consumer unit is much older than 12 years. Starbreaker units 17 years ago in 2006 looked like this:
He said due to Glenfell Tower, these regulations apply from 2020 a
Lies.
. Just to add the EICR was done in 30 mins
Best case they rushed through various tests and inspected nothing.
Worst it's all a made up pack of lies.
Inspection is the most important part of an EICR - test results won't identify most problems.
The poor wording is due to them using some piece of software which has canned answers to certain things, the intent being that they use those as a start and then add/amend as required to describe the particular problem. In this case they have just used the text as it is with no effort given to any further information.
Cost of replacement including VAT, Labour and materials: £550.
Whether that's reasonable depends massively on what they are intending to replace it with.
If it's a junkbox affair from one of the DIY sheds with dual RCDs and an SPD thrown in for £100, then it's grossly overpriced. it would also be a complete waste of time and money to install such a thing.
However for a decent worthwhile replacement with RCBOs for the lighting & cooker, and AFDDs for the socket outlets, then the consumer unit alone would be around £400, so you would expect to pay rather more than £550 in total, particularly as the existing one appears to be a flush mounted item.