Spoiled mutton spicy sausages

Good morning, i purchase meat line every month from longbury butchery phoenix and had no issues. However on monday 7 november 2022 i purchased stuff for approximately 1200 which includes 6 trays of pre packed spicy mutton sausages, which on the label states sell by 11/11/2022 and use by 14/11/2022. We fried 1 tray of sausages on the evening of the 10/11/2022 and noticed it to have a funny smell and taste.... I called them on friday 11th with no joy... I then called them on 12/11/2022 at around 11am and spoke to the supervisor named asif who stated that he will speak to the owner and get back to me whilst i waited on the line. Asif commes back with a reply that there policy is no return without a receipt. I am not aware if anyone keeps there receipt for 4 days if they previously never encounted any issues with any butchery or retailers for instance... I explained to them that all the trays of sausages are in there packaging with there labels and how can they not cater or assist , but there was no joy. From this day going forward i will not purchase anything from longbury meat market phoenix because of there poor customer service and arrogance to acknowledge there fault