The phone survived your last move, but its box did not. That is common, and it is worth asking about a buyback rather than assuming you need to purchase replacement accessories first.
Say what is included before asking for a value
List the exact phone and storage, then describe the box, cable, charger and receipt separately. Do not tick off an original accessory because you own a replacement. If a serial label on a box belongs to a different handset, say so.
Requirements differ by device and condition. A factory-sealed new phone is a different case from an old mobile without packaging. Use the condition guide and confirm what Kwik needs before planning a store visit.
A receipt helps explain the history
A purchase record may help document source, date and warranty. It does not guarantee a higher price or remove the need to verify ownership. Keep what you have available privately; do not send unnecessary identity documents to a stranger in response to a public listing.
Missing paperwork should be discussed honestly. Kwik’s ownership and ID policy describes the verification step. Never offer a device that is not yours to sell.
Do not spend money just to make the set look complete
Ask for an as-is assessment before buying a box or charger. A replacement box does not make a used phone factory sealed, and the extra accessory may not increase the offer by its cost. Check that any charger you do include is suitable and safe for the device.
Prepare the phone itself
Working functions, accurate model details and account-lock removal matter regardless of packaging. Find your model, explain missing items and confirm the final contents before handover. Follow the data-wipe checklist. The inspected device and the agreed offer determine the sale, not the presence of a box alone.