Yep they offer an alternative but you don't need to have it if you don't want. Asda are really good with returning items, I'd give them a ring & explain, I ordered satsumas & got clementines delivered, but not noted as a substitution, they guy had gone when I realised, so I rang Asda & explained they refunded my money & I got the keep the clementines, well DD had them they are too sweet for me.