One package identifier. Our order lists the arm, controller, and the tool wiring adapter. I've checked all the foam compartments. Neither missing item is hiding underneath

@LucyBennett0741 Send that inventory with photos of the crate label. Ask the seller to assign the controller and the tool wiring adapter to a package number and provide its transport reference.

Is this a contents shortage or an undelivered parcel? I can't find their split-shipment explanation in our order documents

@LucyBennett0741 Call it the undelivered balance of your order for now. Your inventory is clear even if their packing arrangement isn't.

@TobyBaker0492 Exactly. With only one package on the note, the controller wasn't in that shipment. Ask for the other consignment details.

Careful: one recorded package doesn't establish its intended contents. It also doesn't establish that a second shipment was actually made.

Agreed, I jumped from count to contents. Your inventory shows what's absent. The seller still owes you the packing and dispatch explanation.

@LucyBennett0741 Is the arm useful for any setup work while the controller is missing?

Paperwork and visible label checks, yes. Keep the arm off, and don't try another controller just because it looks similar.

It's staying off. The empty space on our bench is annoying, but borrowing a controller wasn't part of my plan

On my own split delivery, the packing list said which box held each item. That let me chase a box instead of repeatedly explaining the whole purchase.

Did you use the carrier's box numbers or the seller's? I can see how those might become two more lists that don't agree

Keep both if they're different, with an explicit link between them. Ask the seller which carrier reference belongs to each of its package identifiers.