We're very sorry to hear that some tumblers were leaking and apologize for any inconvenience caused by this. We'll be happy to see how best we can help to get this matter resolved. In doing so, please let us know how many of the tumblers were affected.

Thank you for bringing this to our attention, and we’re truly sorry to hear about the leaking issue with your tumbler. That’s certainly not the quality we aim to deliver. Could you please send us a clear photo of the tumbler showing the leaking issue—particularly where it appears between the inner and outer layers? This will help us better understand the problem and ensure a proper resolution.

Thank you for reaching out, and bringing the issue with the tumblers to our attention. We are very sorry to hear that you received some of them with scratches and that the quality was not as expected. We'd love to help make things right for you. To help us assist you more effectively, please reply to the email with photos displaying scratches on the cups and any other concerns you may have. We look forward to hearing from you.