Hello, how can I help you today?
Yes i looking at my bill, and i see that i was charged twice for my premium subscription
Glad to help. May I have your full name please?
Norman Bouchard
thanks Norman. Can you please let me know your Account ID and Order ID to verify your identity?
sure my account id is QZSWNGBMNQ and order id 9897014215
thanks. I also need your membership level to proceed further, please.
sliver
How much is the overcharge?
$40 hello
Sorry about that. What is the total bill amount?
i was charged $80 but i should've  been but $40
Okay, I am offering a refund to you now.

A refund of $40 has been made to your account.
ok, thanks
You are welcome. Is there anything else that I can help you with?
that will be all
Have a nice day!