Hey there, @abhi-fangoria-co.
Thanks for reaching out to the Community.
I recommend contacting the Bill.com team. This way, they can review the account to ensure it shows as canceled. If it is canceled, you'll need to connect with our QuickBooks Online customer service team to help with the connection.
In the meantime, check out the articles that cover moving from Bill.com to Online Bill Pay that I've included below.
Please let me know if there is anything else that I can assist you with. You can reach out to the Community at any time. Take care!