Carlo Islar

I was renting some land by Coral Estates. One day the owner, just trew all tenants out of the sim without any warning. Simply just returned all the stuff back. Malls, houses ect :( Gave the sim a new name, and rented it out to other costumers. I still have over 4,000 Linden on the account that i want returned to me, but i got no answer at all from the owner. How do I get in contact with LL to make a complaint? I dont have premium membership.