Getting four technical answers before choosing hosted grafana - how to proceed

My company is deciding between using Hosted Grafana and one other monitoring vendor. We have a large AWS installation. We have four technical questions that would need resolution before going with Grafana. So far been unable to reach anyone even in sales or support (let alone engineering) to ask. Any recommendations on how to proceed?

Sorry to hear that, must have been some issue with the email not going through. How did you reach out?

DM me any technical questions for now. Will ask sales is they find any inquiry from you l.