adobe the serial number is already in use by the maximum allowed computers

i bought createive suite 6 very expensive. now my hard drive died and i replaced with new one and when i install adove suite again it start giving me popup msg the serial number is already in use so i contacted adobe support person and he said nothing can be done you have to buy new one and he start trying to convince me to buy new subscriptions with discounted price.

what is all this why we have to pay again as i have spent lot of money to buy creative suite 6