It all depends on the final consumer laws you have in your country. In mine (and others are similar), for example, you can proceed as follows:
- In the first 14 days you can ask for a new one if the product has defects.
- In the first 14 days you can cancel your purchase if it has been done remotely (for example online)
The warranty's a little different. It depends on the legally established and binding period and on the manufacturer's established period, which can never be less than the legal period.
- Legal period of 2 years (in my country): The seller has to act as an intermediary between the buyer and the manufacturer. The customer sends the product with faults and the seller takes care of the whole process.
- Extended period of more than 2 years (provided by the manufacturer): The customer has to manage it directly with the manufacturer.
Another issue is who pays for the shipment of the product. Normally the customer pays for the shipment to the distributor or manufacturer and the return shipment is paid for by the other party. As long as it is proven that the product is really damaged and that damage is covered by the warranty. If the product has a damage that is not covered by the warranty, the customer pays for shipping and labor cost or repair.
What's happening with Yuneec? or do I think so? First, they are sending the products very slowly. Second, that distributors in general, do not have the economic power to have 4 cameras or drones in the "air", it is a lot of money invested and dead while Yuneec determines whether to send a new one. It's not just having to wait 3 weeks, but then you get an extra product that you can't sell right away.
I just went through the same thing myself, a camera I thought was broken sent it to the dealer. He didn't have any new ones, he asked for them as he sold them. Luckily, he received an order for two new ones and he could prove to me that the same thing happened in all the cameras. I gave up sending the camera to Yuneec and wasted 3 weeks. I paid for the outward and return trip of the camera.
The important thing here is for everyone to look at the laws of their country. In principle, all salespeople do their best to make things easier for their customers so that they don't lose them. We also need to understand the situation they are in and come to an agreement.