Sofas filled with rubble

I bought "Victorian style" sofas from Lifestyle furniture, a few months later they became uncomfortable to sit on. I took them to an upholstery, only to find out that they have actually been filled with junk. There is no proper sponge or at least springs. They are very hard, your back will ache 30 minutes after seating on them.

They are not worth the money paid for them. They sell us junk. The product is nice on the outside but baddest quality ever.