Why is it so hard to speak to a manager at Intuit?

Since April 16th, we have had an issue with the Amex feed loading into our QBO account. The short term fix was creating separate child accounts for each credit card holder (8). Intuit tells me the issue is fixed and it is an Amex problem because they changed the way they are filtering the data into QBO (into child accounts). Amex says this is not true. This has created more work on our end and we have not been able to reconcile our Amex account.  How do I speak to a manger when they never call back. The frustration is off the charts. Any insight is much appreciated and thanks for letting me vent.