Sorbet & dermologica... Poor quality dispenser

Melting moisturizer dispenser bottle not working. Upon returning it to Sorbet Elridge corner shopping center... They say because it was purchased more than 3 month ago they won't replace it. That's not fair. I am unable to use the product because of tge dispenser. It's a faulty product. Now in sitting with a full bottle of R2000 that i can not use!!!! Also manager still did not reply to my request.