Regus review: No one answering the phone

I have an account with Regus at 6080 Center Drive, Los Angeles, CA 90045 address. I had a customer who sent a very sizable check to this address on September 2. I have called countless times trying to catch someone in the office. I emailed Sandi, who emailed me to let me know that the office would be closed on Labor Day, with no response. On July 1, 2020, when I emailed, I was told that I had two pieces of mail there that they would forward. I successfully received my mail in July. Since that time, I can't reach anyone by phone and I have not received mail that my customers told me they sent me. Is Regus out of business, and has the staff been laid off?