ADP Manager interview questions

I submitted a competitive application in August. Weeks later, I attempted to contact the hiring manager and recruiter. I was provided dead-end numbers to call. I left messages on LinkedIn hoping to connect with someone about the status of the application. No follow-up. No callback. I understand the process is impacted by COVID-19, but for an organization that speaks highly of it's focus on employees, it did not provide the attention to detail a prospective employee has come to expect of its brand.