I cannot understand the meaning of the phrase:
You get that much because that’s how much you get
It means: you receive that much because you receive that much?!
Like: Why A? Because A.
The full text is here:
The bishop and I were still meeting every Sunday. Robin had told him that I hadn’t bought my textbooks for the semester. “This is ridiculous,” he said. “Apply for the grant! You’re poor! That’s why these grants exist!” [...]He had printed out the application forms, which he gave to me. “Think about it. You need to learn to accept help, even from the Government.” I took the forms. Robin filled them out. THE FORMS SAT ON my desk for a week before Robin walked with me to the post office and watched me hand them to the postal worker.It didn’t take long, a week, maybe two [...]the mail came [...]I tore open the envelope and a check fell onto my bed. For four thousand dollars. I felt greedy, then afraid of my greed. There was a contact number. I dialed it. “There’s a problem,” I told the woman who answered. “The check is for four thousand dollars, but I only need fourteen hundred.”The line was silent. “Hello? Hello?” “Let me get this straight,” the woman said. “You’re saying the check is for too much money? What do you want me to do?” “If I send it back, could you send me another one? I only need fourteen hundred. For a root canal.” “Look, honey,” she said. “You get that much because that’s how much you get. Cash it or don’t, it’s up to you.” Educated, Tara Westover (2018)