Activation lock request failed again

Hi👋

I recently erased my MacBook and it asked for Apple ID but I didn't know Apple ID because the seller logged in with his ID.

I asked receipt from store and they sent me it, then I sent it in activation lock request but they said me that they are unavailable to unlock it.

I am sharing you receipt and email screenshot.

*request were formulated by me and Advisor of Apple Support.

If you can , please give me advice.