Nandos refuses to give extra Peri Peri Sauce Sachet's

The only Nandos in the country that refuses to give me extra packets of Peri-Peri sauces even when I am willing to pay extra for them is Nandos Jubilee Mall in Hammanskraal. They say it is not possible. There is a difference between impossibility and unwillingness to satisfy the Customer. I am done. I will leave and drive to Petroport if this treatment does not improve. I actually enjoy the sauce on my chips and I cannot carry around the bottle that I buy for the house to Nandos. They treat me like I am being unreasonable. If I want Seven sachets of sauces for my take away i should be able to get them.