What Can O2 UK Customer Service (0344 809 0202) Help With?

O2’s support line covers:

• Billing & account queries (balance, payments, disputes)
• Technical support (signal, data, device issues)
• Device repairs/replacements (insurance, warranty)
• Number changes & porting (PAC/STAC codes)
• Plan changes, upgrades, add-ons
• Network coverage checks & complaints
• New service activation & setup
• Cancellations, account modifications
• General questions on products/services

Alternatives: Live chat (My O2 app), email, Twitter (@O2), community forums. Have account details ready.