It is easy to blame Intuit for this.  Did you check whether you made all the required entries for the EFW to be triggered?  If you did, the return you efiled should have produced the following for your client's records:

1. Financial Transaction Summary: This outlines the amount of estimated tax payment that has been scheduled for each quarter, the expected date of debit, and the bank account details; and
2. E-File Payment Record: One will be produced for each estimated tax payment, in a format that resembles 1040-ES.

We also advise clients to monitor the debits and let us know in case any of these don't go through, give or take a couple days after the scheduled date, so that remedial actions can be taken.

Unless you have these records but no deduction took place, I wouldn't be so quick to blame Intuit for the lack of payment.

Here's an article with instructions for how to initiate ES-tax payments by EFW: https://proconnect.intuit.com/support/en-us/help-article/electronic-filing/setting-electronic-paymen...