Yes, Zelle customer service is available 24 hours a day, 7 days a week. You can reach out to Zelle's customer support team at any time via phone, email, social media, or mail to report any issues or questions you may have related to your Zelle account or transactions. The customer support team is trained to assist you with any problems you may encounter, from technical issues to transactional disputes, and will work with you to resolve the issue as quickly as possible. It's important to note that while Zelle's customer service is available 24/7, your bank or credit union may have different customer service hours. Be sure to check with your bank or credit union for their specific customer service hours.