Subway complaint: Unsatisfactory Service

I am retired after a career in the United States Air Force. I received Subway discount coupons in the mail. I removed the ones of interest to me and gave the remainder to my tenant to whom I rent an apartment. When I went to use mine in the store, I was told I must place order on line. I mentioned this to my tenant and she said she was allowed use hers at the store, contrary to what I was told. Anyway, I place my order on line and entered my coupon code while doing so. About 30 minutes later, I was called by an employee there and advised they didn’t have any turkey. I elected to wait another 30 minutes until restocking was accomplished. When I showed up to pick up my order, I first asked why they had no cookies on display and the associate stated they didn’t bother to make any. Hence, my complimentary military cookie didn’t happen. I then tried to present my coupon and the associate advised I couldn’t use that since I had ordered on line, that I needed to use that in store only. At this point I am extremely frustrated and annoyed. I’m thinking I got no discount. However, I received the discount per the price reflected on my receipt. Anyway, staff was very unprofessional and not qualified to effectively convey information in a clear, succinct manner. I had a witness who accompanied me during the entire experience. Staff was extremely rude and unprofessional.