Woolworths can keep the comforter set I left at Centurion Mall due to serious quality but was told should have returned within 6 months as it was bought online but Woolworths refused to hear why I only started using it this winter

Woolworths can keep the comforter set I left at Centurion Mall due to serious quality but was told should have returned within 6 months as it was bought online but Woolworths refused to hear why I only started using it this winter. I'll never buy bedding from them again since it's bad quality