Retaining days left before renewing subscription

Hi, I have Norton Internet Securities on my computer with 140 days left before renewing.

I have just bought a new Norton Securities Premium for 5 devises and a two year subscription due to the price and cash back offer.

I have to activate the product to be able to claim the cash back so the question is will I be able to retain the 140 days if I activate the new product now?

Any help would be appreciated.

Bob