How can I change my invoice date?
How can I contact support about billing?
How much does GPT-4 cost?
What is prepaid billing?
How do I submit a VAT exemption request?
How do I request a refund?
Why was my credit card declined?
How can I change the billing details on my invoice?
I want to move my ChatGPT subscription to the API.
Why did my ChatGPT Plus renewal transaction fail?
I never authorized my ChatGPT Plus payment, what can I do?
Why am I seeing duplicate charges?
As a European customer, how can I request a refund?
After updating my API payment method, I noticed a $5 charge. Is this a temporary hold?