Major app glitch shortchanges delivery guys & restaurants. Didn't know promo codes can't be used with cash pay but app didn't alert me to choose different pay method. Delivery guy owed balance to restaurant out of his tip or restaurant loses money! Contacted customer service; they didn't care about restaurant or delivery guy's losses. I venmoed delivery guy myself because I felt bad. I knew these food apps were predatory but didn't know it was this bad. uninstalling these apps after this.