Joining you here to share more details about QBO and Melio integration, Rachel.

Melio is one of our partners for online bill payments. However, QBO does not automatically sync or add it to your account. 

We also want to make sure that this is sorted out. For us to do that, we need to investigate to check who connected the app. To accomplish this, I strongly advise reaching out to our phone or chat support teams. They will thoroughly examine the situation, provide more insights, and help you rectify the situation.

Here's how to reach out to them:

1. Go to the Help menu in the upper-right hand corner to open the QB Assistant window.
2. Type in "talk to a human", then press Enter.
3. Click Contact Support Team, then then provide a short description of your concern.
4. Press Enter once again.
5. Select No, I still need help, then choose Contact Support Team.
6. Look for the Chat option and click on it.

• Disconnect an App and Change Subscription 
• Transfer App Ownership or Disconnect Apps 

Rest assured that the Community is always available to address any other concerns you may have. The QuickBooks Team  is here to assist you whenever you require it.

@jenop2  This is an absolute cluster....I called QBO support like you suggested and they had no idea what I was talking about and knew nothing of the issue. I explained everything and the person just told me to call Melio. He gave me this phone number for Melio, 646-665-4684 which is just a recording that says to login to your Melio account and click the support button (I DON'T HAVE AN ACCOUNT TO LOGIN TO), or email them and they'll get back to you in 24 hours. This is completely unacceptable! I can't believe QuickBooks has no way of handling this. Obviously per this thread, MULTIPLE QBO users have this issue and no one at QuickBooks cares or is interested in fixing the issue. 

Had the same problem with fraud.  QB was no help.  They told me to contact Melio

@901RES 

Melio support will be more responsive to address your concerns directly if you have a stand-alone account with them. You should signup for a separate account for free and you can connect it to your QBO account. Pay an outstanding bill you have with a minimum amount of $200 to confirm your Melio account is active. Then contact their Support from your account to ask questions directly.

https://affiliates.meliopayments.com/quickbooks

Why would I encourage Melio to exist? Why would I corrupt my own account with their service or use a service that does not work and that is causing problems with my client that DOES NOT USE THEM ANYWAY? Why would I pay to use them to make payments of my own just to be able to tell them to go away (go jump in a lake, etc, disappear forever, I wished that they had never been created, they have a horrible product, pick one)? This advice is confusing.