Marshalls

I want to report that I bought a pair of boots in Marshall in October and its now broken inside because its quality. But staff said they can't give me any compensation or refund or replace a new one because its exceeded 30 days.And they told me there is nothing they can do because the boots is brand in Timberland, marshall is only selling. I think it unfair, Whatever its brand is, I bought it from marshall. Does that means marshall only selling goods and doesn't care about its quality at all? This is ridiculous. Looking forward to a USEFUL reply. Thanks.