@kezo here is a pic of the label on the consumer unit.
MD incl charger 101.6A – (based on 100% of the largest +40% of the rest of MCB’s) BS7671 onsite guide.
However as described in a previous thread this is more of a guide figure and your actual MD will be lower than this and below 100A. i.e if I was to take the last 4 6A MCB’s and added diversity it would be 15.84A so straight away your under 100A and so on.
Is your home a HA or LA and who is your DNO (area you live if you dont know)