Contact us by email or visit us online or call 3 direct on Get help with ordering online, support and other enquiries. Whether you require support for your mobile phones, SIMs or mobile broadband, just give a call on this Three customer service phone number. Need help with your Three account or device? Get in touch today and speak to our friendly team via email, phone, or live chat. Reporting your Three device · Complaints code form · Upgrading.
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