TurkeyTx Wrigglesworth

I paid my $28K recently for my homestead sim rental. The owner raised my rates 3 days later and I moved my horse business off the sim. I paid for an entire month and went back on my the sim to rezz various objects. Without telling me or permission the owner re-rented the sim. There are now residents on it. I asked for a refund on the balance of unused time of 3 weeks and he refuses. I have the transaction on my history. Will LL help me in any way or am I just out nearly $90 US. There was nothing in the covenant that said they could do this that I know of. Any thoughts? All I want is what is fair.