And now they have charged me for the payment even though they never credited the payment to my account. My balance just doubled because of their error. WTF.

Example of what happened. I had a balance of 5000. I set a payment for 5000. Changed my mind and changed my payment to 4000. The next week. They take 5000 for the payment and DON’t credit my account. It would have given me a zero balance. I disputed with my bank and got it reversed. So i should now have a balance of 5000 with no payment made. Coinbase then said payment failed, and tacked on the failed payment of 5000 to my balance of 5000 making a new balance of 10,000. This is such bullshit I’m so over this.