A problem with the Vanguard website or phone app? I have never had a real problem with Vanguards phone App or website except when they are down for maintenance on the weekends.
Obviously on occasion all large companies and organizations have tech problems sometimes.
But I am an active trader using Vanguard weekly in my Roth and brokerage account and I have no problems making trades at all. Very quick and trades are always filled up to the last minute of the trading day.
The Vanguard 800 number is open 12 hours a day Monday thru Friday so I guess young investors use that service when needed. But it won't be for a tech issue.
I have called Vanguard a few times in the past 5 years and they do answer the phone quickly in my experience.
If any company puts me on hold longer than 15 minutes I move on with life and try again later.
So was Vanguard able to help you with your checking account issue?
Hopefully you received quick phone service.
I really cannot even think of a reason to call Vanguard or Schwab or Fidelity to be honest.
I can now do everything on my phone or MacBook Pro.