Why do you think my boss didn’t get back to me?

I work for a commercial cleaning company. I will start cleaning the dmv soon. A couple months ago, I get an email from the company asking me to do some online training. I read a lot about like phishing, how to handle important documents, and how to dispose of electronics. Then I took a test. I guessed on a lot of them, but I still passed with flying colors, but im not very confident in the material. A little over a week ago I text my boss asking more some supplies. She responds asking me if I'm still interested in cleaning the dmv, because we got the contract with them. I was honest, and told her that I passed the test, but im still not very confident with the material. Then I explained that I tried logging into the site again to look through the material again, and I'll try again. That was over a week ago, and she hasn't responded, and she always responds. We use quickbooks, and and I see the dmv is on my schedule, and I'll be cleaning with my boss the first time. I'm guessing if the training was really important then she would have responded to my text, and made sure I studied more. So what do you think?

Why do you think my boss didn’t get back to me?
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