Sadly, we know that sometimes the Ailia Bottle is just not quite the right fit for some people. You can certainly return your Ailia Bottle to us for a full refund, provided it is returned within 30 days. Please note: Not all items are eligible for return. Any exclusions will be called out on product pages and / or at checkout. All Ailia Bottles must be returned in as new condition, with an undamaged owners manual, charger zip lock bag, charging cord wrap and any additional extras to be eligible for a return. Please note: If you are returning one of your items from a bundle, your order is no longer valid at that bundle pricing.