If your annual mileage increases you can either speak with your local MG Motor UK Dealership or call our Service Plan administrator, eDynamix, who will amend this for you. It will mean that your next scheduled service will be earlier than shown in your Service Plan Contract. Your Service Plan monthly payment will either be recalculated or a top-up payment taken to cover the increase in money due for the next service, due to the mileage increase.