Get verified information about Yahoo complaints email & Phone number. If you wish to complain to Yahoo, call the complaints line on 800-305-7664. Complaints handling is available on the Yahoo website via ‘Customer Support.’ The first step is to call on the complaints line 800-305-7664(Live support). If your complaint is not resolved at this stage, the company’s complaints procedure is clearly set out along with further contact details such as a correspondence address and online contact form.
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