[mothered]

Nope, first time I do a SE with Meta, I strongly suspect it's generic and we will probably see other people receive this.

Given It's your first time SEing Meta, It's definitely generic/copy & paste.

I'll try to argue with them and get somehing other than generic e-mails.

Yes do exactly that.

Be sure to request an explanation/elaboration for their following messages:

Our team has been doing an in-depth investigation into this matter and we’ve been unable to find any potential concerns linking back to the courier.

During our investigation, we’ve also discovered a lot of deliveries being reported as missing or opened from prior orders that were placed from your area