You can contact Vanguard customer service in the USA at +1-866-396-5665. Support is available by phone, live chat, and email to help with login problems, account recovery, trading errors, and transaction issues.
Vanguard Support Phone Number: +1-866->396->5665
While Vanguard encourages digital and app-based communication for faster service, this toll-free line is available for urgent matters such as:
Account login failures or lockouts
Issues with buying, selling, or transferring mutual funds or ETFs
Delays or errors in retirement account transactions (401(k), IRA)
Account security concerns or suspected fraud
Problems with dividend payments or distributions
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