Buying Lifetime, Possibly

I am thinking about purchasing Aimware for 90 days as its on sale atm and very possibly might just upgrade to lifetime would I be able to purchase the 90 days now, then later after buy lifetime and receive the refund for the 90 days within a specific period?

Thanks for the response see you around.

Not possible, you would have to purchase lifetime now.

Regards,
zesshy