Rec query

can’t recommend anyone unfortunately

Esbn aren’t permitted to work on your distribution board

They’d be doing the right thing by removing your main fuse and sealing it

Then you’d be required to get a rec out to fix your issues and certify for reconnection

You may struggle to get a Cert . The board will have to be replaced at a minimum and whole house tested with any remediation work including earthing upgraded

https://safeelectric.ie/find-an-electrician/

Type in your area and make a few calls. Or call back the electrician, could just need to re tighten the cable,make sure it is inserted properly.

esbn also charges for call-outs if it’s not their issue

fair play to esbn crew so. Glad you still have power

Your issue is with whoever installed the car charger. No surprise you weren't issued with a cert for that as it's incredibly dangerous to trim the cable to fit.

As above esbns responsibility stops at the meter, you'll do well not to have them cut off the supply entirely until it's sorted.

Edit I was going to add they're normally sound and turns out to be the case!

Sorry just to confirm is that the shower rcbo or the charger? Was the shower neutral trimmed as well, and was the shower in use when the car charger was plugged in?

Did your current rec not have anything to say about how dangerously your car charger was wired?

any rec working on a distribution board has to check it out completely. It’s obvious from your original photos that there was no issues/damage to the existing car charger rcbo. As you say,ongoing works may have caused some connections to be loosened whilst fishing cables into the distribution board. The onus is on the rec to make sure that these are tight. (See link below)

I’m surprised that the emergency electrician didn’t issue you a notice of potential hazard on the existing distribution board (but if he’s coming back to replace it then he may not)

https://safeelectric.ie/contractors/tech-information/guidance-for-major-important-modifications-to-distribution-boards-in-existing-installations-or-upgrading-customer-meter-tails/

connections look good in your original photos. It’s possible when adding the new rcbo for your lighting circuit that this neutral was disturbed to get a feed. It is impossible to be sure though. However all connections must be checked when the cover is removed from your distribution board.
there have been too many electricians at this board now unfortunately.

this isn’t a great connection either but it looks like the loop feeding your new light rcbo

from day one on this post , you need a board Change and whole house test , This should of been done before any electrical works , many a corner has been cut unfortunately,

hold back 3k from the bathroom company,

That will replace a board test whole house and sort some issues,

Get that job done as soon as you can , next time you might not be as lucky,

House burnt down and no insurance to cover it due to improper electrical work

that really is excellent from fokearn.

Perhaps, or they were going out of their way to ensure the OP didn't pursue it further.