Mine has been in for 6 months.
As far as GA state earning interest by hold our money.....they should be paying interest on all refunds starting from the day the refund was accepted. In my case it will be 6 months on Aug 01.
After all the wait 1 to 2 year to send you past errors and payment, if warranted, then tact on interest for that entire time that it took them to send you the notice.
