I can see the urgency of resolving your concern about getting into QuickBooks Payments, andrea. This way, you can easily process your customer's payments in your company file.
The support you spoke with is correct about the ongoing investigation of customers being unable to log in through their merchant accounts. Please know that our engineers are currently working on this to sort it out as quickly as possible. Since they are working on this internally, please know that we cannot provide a turnaround time regarding their efforts.
While we don't have a confirmed workaround for this situation, it's better to continue what you're currently doing to process payments.
On the other hand, since you have already contacted them, you'll be added to the list of affected users and will receive their progress via email. Once resolved, you can refer to this article for complete guidelines for accessing your payments account through your QuickBooks Desktop (QBDT) company file: Access the Merchant Service Center from QuickBooks Desktop.
I appreciate you for being patient while we work to fix this issue. Please know we're doing everything we can to resolve it as soon as possible. Take care!
