This transaction didn’t go through Payment not processed because of a problem on our end.

Hi userinfo99, 

It' important you're able to use the payments feature without running into errors. Don't worry, I'll be happy to steer you in the right direction so you can get the support you need to get back on track with your work. 

Based on what you've described, I encourage you to contact our support team so they can take a closer look at your account in a private/secure environment. You're more than welcome to reach back to me in the comments below. Otherwise, here's how to connect with our support team: 

• Schedule a Callback or start a Chat: click (?)Help in the upper right in QuickBooks Online > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat.
• Social Media: Facebook, Twitter, and Instagram.
• Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET.

Enjoy the rest of your week!