Chicken Express review: Gravy and chicken breast

I came to the chicken the chicken express on Wadley in midland tx. They did not have any breast so I drove across town to order my food. My son got tenders I got two plates of chicken with breast. I spent 33$ and change. My sons gravy was left out on accident by the other employees so I figured I could drive to the one closest to me just to pick up gravy. I was hoping they would give it to me since it is all chicken express. They told me I needed to drive to the other one across town to pick up my gravy. That was absurd to me I only went to that one because they were out of chicken breast. They made me pay for a small container of gravy instead of just replacing it. I don’t understand why they made me pay when I went to the other just because they were out of chicken breast. They lady at the counter was very rude when I just asked about them replacing it. I also called to get corporate number I asked for the manager she told me to hold on them hung up on me. This chicken express has lost my business unless they rectify this somehow. I am extremely upset and don’t understand why I had to pay for gravy twice. Very bad customer service. How much would have cost for them just to give me the small gravy to keep a customer and keep them happy. Ridiculous