I purchased 3 months of premium at the discounted rate on December 17th & only ever used my Linden Lab home. I got rid of my home & put an end to my premium subscription at least 2 weeks before my premium was even supposed to end. So my premium did end 3 weeks ago but my land use has been nothing for at least a full month. It says my charge is a "Recurring mainland fee" which is leading me to think I'll get another $4 charge next month.