Hi Grace,
Thank you for letting us know about this issue, and we're so glad to hear you love your water flosser!
We sincerely apologize that your replacement tip order never arrived. This is absolutely not the experience we want for our valued customers, especially when you simply need to maintain your oral care routine with a fresh tip.
A missing shipment is completely unacceptable on our end, and we take full responsibility for this fulfillment failure. We understand how frustrating it must be to place an order for something you need and then not receive it.
Please reach out to us at contact@gurunanda.com so we can immediately investigate what happened with your shipment and get you the replacement tips you ordered right away.