I am having the same problem exactly. However I am able to talk to the expert product support and this guy was also unable to help, though he did try as hard as he could. The feature it broken no ifs ands or buts about it. Intuit PLEASE fix this ASAP!

Hitting ALL the panic buttons..

TaxPayerGuy

TaxPayerGuy - Thank you for sharing what you learned from TurboTax product support! I appreciate it and do hope this issue gets resolved quickly  by Intuit so we do not incur a penalty for failure to file the extension on time when we were on time!

The site has changed now I can edit and fix the extension (typo in my SSN). But I cannot resubmit it.

I get this message instead, even through it's not a new filing. WTH, Intuit fix this!

Sorry, we were unable to process your submission.
Here's why:

I have the same problem!!  Has anyone received an answer??

I have not tried the workaround yet, but I just found this on the support page: https://ttlc.intuit.com/questions/4465802-why-am-i-unable-to-fix-my-rejected-extension

Note: If you are paying some taxes when filing the extension, and you put in your bank account details, you are required to put in a pay date. You can't put in a date after 4/18/18, and it won't accept a date in the past. So, basically you are screwed. Thanks a lot, TurboTax.

I wonder if I use a competitor's system to "correct" my extension by filing a new one will that register as timely?

same problem

Not it does not work. I have tried that every day since Friday.

Also they say "before the date of 04/23/18" but the IRS allows up to and including 4/24. Why are they limiting it.

I had the same problem exactly. I kept trying and now it is after the 23 deadline!

I never got to submit the fix. I am disappointed beyond words.  This is the first time Intuit support has completely failed me, and I see other people as well.  It's a general problem affecting multiple people and they ignored it. Unlikely that I am going to use Intuit next year as they apparently never plan to fix the ability to resubmit an extension, and did not go to bat with the IRS for us over this either.

How do I contact the IRS to prove that I submitted my extensin request on time?  They co not answer the phone and there is no email address.  I have proof of mailing.