Of course, a company can (or should be able to) eventually figure out problems. However, the process (should) go quicker if the input and output surrounding the complaint is provided. Maybe try thinking of it this way… You go to the doctor and say, “It hurts!” They ask you for details such as: “What hurts?” “How long has it been hurting?” “How would you rate the severity?” You look at them angrily and say, “It’s your job to figure it out!” Again, yes, in general that’s true. However, the earlier questions help narrow it down. And instead of you providing information about how to narrow down the culprit, they say, “Okay. We’ll do [list off several dozen tests].” Many of those tests may be unreasonable to you, but to the person that lacks the details that’s how they’re going to determine them.