I hope you're doing well! I am terribly sorry to hear about your Nest Camera mount issues. I can imagine it’s been quite frustrating being without a working device. Which Nest Hello model do you have? The Nest Hello (wired) or the Nest Hello (battery)?
We will need to look into this further in order to best assist you. I cannot guarantee I can get you a replacement, but I can submit your request for one. We'll be reaching out to your email on file to collect some information from you. Please respond as soon as you can, so we can get the process started.
Please let me know if you need any further assistance!