Taco Bell review: missing food

I ordered food via the Taco Bell App last week. When my daughter went to pick it up, they couldn't find an order for me. They finally found it, but not on the app, but in their drivethrough (?). They handed her a big bag and she left. Got home, and we were missing 18 tacos! They put everything in there but left out the tacos. That is alot of money to just let go. For our whole order, we paid over 73.00. I called the manager, and she said unless I could show her on my phone where we ordered, there was nothing she could do about it. For some reason, my order does NOT show up on the app in previous history or anything. I have no idea what happened with the app, but Taco Bell owes me close to 25.00 and I want my money. I won't be going there again unless this is resolved.