Yes, that would be helpful.
@anna_jopp … Requiring a proof of purchase/ownership to offer service is fine, but this "Unlocking the bootloader is not available for this device please contact our customer support team” message on the phone seems unusual, even more so if the phone really was still sealed. Support should at least be able to explain clearly what the situation is with this phone (Reported as stolen in a database, which one? Marked as a device to be serviced by Palcom in Taiwan? Anything else?), so @cs_234 would be in a position to do something about it with the seller.