The primary phone number for Best Buy technical support and Geek Squad assistance is (1-888-BEST BUY). This line is generally available 24/7 for troubleshooting and membership questions. 📞 Key Contact Numbers General Tech Support / Geek Squad: 1-888-237-8289 Geek Squad Protection Claims: 1-800-433-5778 Lost/Stolen Cell Phones: 1-866-205-4388 Home Expert Consultations: 1-800-548-0828 Best Buy Business Support: 1-800-304-7955 Credit Card Payments: 1-888-574-1301 🛠 Support Options Remote Support: Geek Squad - Best Buy