@William V V
I'm really sorry to hear about the trouble you're experiencing. It's important that we address the issue of being charged twice and clarify the charges for test calls. To help you effectively, I would need to gather some more details about your account and the specific transactions.
Regarding the email address for private messages, I apologize for the inconvenience caused by the errors on the support page. While I can't provide an email address directly, I can certainly assist you in resolving the billing issues you've mentioned.
Could you please provide me with the transaction IDs or any relevant details about the charges so I can look into this for you? Once I have that information, I'll do my best to assist you further and ensure that any errors are corrected.