Personally i'd issue a MWC and a covering letter regarding why the change was made. I'd also note that a full PIR might be advised due to the DIY nature of the electrical installation.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local