@discnik ...MediumDensityFibreboard......the sawdust cousin of particleboard....
Somewhat easier to infill & form, a +.
The cherry veneer....are the fragments still attached, or at least, available?
The matte finish is a surface coat, whereas the veneer matching can be problematic....but as you noted, it's a bottom corner.....
Just to verify, is this the item under discussion?
(...stated at the site as a gloss finish, but 🤷♂️....if I knew Everything, a different pay scale I've never known....*L*)
The front surround didn't damage as well? Odd, but....
When you take pics, put a quarter ($.25) in frame; allows to be able to scale the scar....
Re your 'meet' with the seller....
I've known of drug deals that were more 'upfront' about it, in terms of contact and follow-thru....your concerns, appropo...
Anyway, I'm pretty 'obvious' in this 'noid world.....
Post pics, puleze, J