Mercari Negotiator Needed in Japan based in Japan only

I'm seeking assistance from someone in Japan with an open Mercari account. I have a list of 50 sellers of collectibles, along with pre-written messages in Japanese and links to the items. Your task will be to negotiate prices and seek discounts on bundled items.

Key Responsibilities:
- Copy and paste the provided messages to sellers.
- Update me on replies after 1-2 days.
- Send follow-up messages if required.

I need someone who can help me with this. Please let me know if you can assist.