Incomplete or wrong order received

On Tuesday the 3rd of March I went to the KFC Bloem 2 to buy some food. After receiving my food at the drive-threw I noted that my order was incomplete, no serviettes and s****s supp****. When I asked the person who handed my food to me she assured me everything I ordered was in the bag and that there are serviettes and s****s inside the bag, when I asked they must show me where the Mash and Gravy is they couldn't . We again went there on Sunday the 8th of March to order some food again, on receiving the food i asked them inside the shop three times if everything is in order this time and Me Matshoba the cashier assured me that everything is fine, at home we discovered that we received two zinger box meals instead of 1 Fully Loaded box meal and one Zinger meal. We then called the shop informing them about the problem the manager that was on duty said we can come and collect a new meal today. After entering the shop the manager Me Bianca said to me that she is not going to replace the meal unless we returned the wrong meal, I asked her why must I drive up and down to get what I ordered she just turned her back on me and walked away. We have reported this store on previous occasions