DJI Osmo Mobile 7 Arrived With a Missing Rubber Pad on the Phone Clamp

On June 27th, I purchased a DJI Osmo Mobile 7 phone clamp through N11, and the product reached me on June 29th. When I opened it, I noticed the rubber pad on the right side of the clamp was missing. In other words, the product was sent to me defective, with a missing part.

When I contacted the seller I purchased from, they told me that the products come to them in sealed boxes, so I would need to get support from the manufacturer instead. As a result, even though there's a clear manufacturing/quality control error here, the responsibility for resolving my situation has been completely pushed onto me.

I'm not asking for a full product replacement — I'm only requesting that the missing rubber pad be sent to me. I'm willing to attach the part myself, as long as the product becomes complete and usable. My order number is 271711264428.

I'm asking that DJI and the relevant seller send me this missing part free of charge, and that the hardship I've experienced throughout this process be resolved as soon as possible.