Existing QB accountant has cancelled clients subscription that was supposed to be handed over to me, how do I get access and accept client

Hi there and welcome to the QuickBooks Community!

There's great benefit to connecting your client's QuickBooks Online subscription with yours as an accountant or bookkeeper. Your client can rest assured knowing that you'll be helping them with their books every step of the way, and you can keep an eye on the transactions they've entered to ensure that they're following the best practices. It's not uncommon to experience some bumps in the road when your client is attempting to have their file transferred from one accountant to another, so let me give you some pointers.

What's likely happened is that your client's previous accountant has transferred the billing from their Wholesale Billing plan to the client. In this case they should have sent the client a warning to let them know that they'd need to enter their own billing details to keep the subscription active. Since it sounds like that wasn't done, the account has been cancelled. At this point, your client should log in and navigate to the Gear icon, then Account and settings, followed by selecting the Billing & subscription tab. From there they'll be able to enter their own payment details to re-activate the subscription.

If you'll be adding this client to your Wholesale Billing you can follow the steps in this article to do so if you're not familiar with the steps: Add a client to Wholesale Billing. 

Depending on whether or not your client's former accountant transferred the role of Primary Admin back to them or not, you may also need to pursue having that switched over. The easiest option is to reach out to the former accountant and have them transfer it to the client's user so that the client can them remove the former accountant and invite you. If this isn't an option, your client may need to complete a Request to be the primary admin or contact. To figure out whether you'll need to do this or not, have your client choose the Manage users option from the Gear icon to take a look at active users and their roles. 

If you have any other questions or come across any issues in this process, don't hesitate to reach out again here for support. If it becomes necessary to share sensitive account data to get continued support, you might consider the options below to reach out for real-time support from our team of customer success experts outside of the Community:

Phone: Call us at 1-855-253-1536 from Monday to Friday between the hours of 9 AM and 8 PM EST.
Schedule a Callback or start a Chat: click (?)Help in the upper right > 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.

Take care and have a great week!