Walgreens Customer Service Associate interview questions

The manager who interviewed me offered me the job over the phone a week after the interview. I accepted and she said she'd email me drug testing info within the week. No email, so I called back as directed. Took another week to get a hold of her. She then said I'd been accidentally deleted from their system and that I'd need to reapply to get back into the system so they could move forward. I reapplied same day. The following morning I had an email -- it was a canned rejection letter. She had to have known during that last phone call that she wasn't going to hire me, yet she made me reapply for no reason, and strung me along for 3 weeks previous to that. Shoddy way to treat people!