Complaining about BMT

I went to buy 6 packs of pork ribs at BMT on the 28th October 2021 and I usually buy there and sell to my customers every month, two of my customers ribs where off and I had to exchange them. I went to BMT the following day as one of my customer complained, I spoke to the manager Stefano and he agreed to exchange them, while I was there I told Stefano the manager that some of my customer might complain and if they do should I bring back the ribs for exchange, he said yes despite their 24 hour policy. I went back on the 8th November 2021 because another customer complained. Unfortunately I couldn't exchange because the ribs where not the same kilograms as I bought that's my problem... May you please assist me if you can.