I am sorry there is nothing we can do regarding your account. I suggest contacting Customer Service, as they can sort out your issues. They most likely will run the 'Subscription Repair' Tool to correct your expiry date.
You can reach them from this link https://service.mcafee.com/webcenter/portal/cp/home/contact and it is free. Online Chat/Phone being the most expedient.
All the best,
Moved to > My Account Online > Discussions as more appropriate.
You need to contact Support who will adjust the subscription in your PCs based on Order details from Dell. Kindly ensure that you have the Order details handy.
Toll Free number for India: 1800 3000 2454
NOTE: A Dell Order Number is assigned to a shipment on your order. If you purchased multiple items, they may ship separately and you will receive an Order Number for each shipment. You can find this number in your Order Confirmation email.