To be clear, the unforeseen service delays at the depot have nothing to do with covid. I agree that the email verbiage was somewhat confusing which may have led you down that path. If a delay is confirmed, you will receive a follow-up email communication.
I sent my Dell XPS laptop to the repair depot 10 days ago. They still have not repaired it. The Indian customer service, Johnny M, told me the depot is closed 7-8 days due to Covid. How do I get my machine repaired? I need it.  
I was Told Dell Repair Depot Closed Due to Covid