I started receiving the pop-up that my Avast Pro 7 license was going to expire in 30 days, so I decided to renew today, my expiry date was 7/26/2012, however when I purchased the new license from Digital River it said at then end of the transaction that the new expiry date is based on the date of purchase which means it expires 6/30/2013, therefore I lost 1 month from my previous license year of purchase and I would like that month back which I paid for, what to do?