I am sure that if he is already registered in FB more problems couldnt possibly be created, lets be honest
Let's be honest
I don't think you're getting it, whether you are working for a security company or not, try and listen and actually understand what is going on here before running the keyboard about your love for Facebook.
I will start by quoting this post:
Facebook is loving that arrangement, they get to keep and store all Reason Core Users
customer info.
Please read the above quote properly... Facebook can store the information transmitted over Facebook to your support team, which means they will have access to knowing the persons name, email address, location (IP address), and potentially other information too. Now why on earth would someone who does not like Facebook (nor trust them) want to share any information with them at all, period?
Now let's try read another quote... See, we're making progress, not far left!
And I currently have no plans to create a Facebook account.
Please read the above quote properly... Notice how the person who requires assistance does not have plans to create a Facebook account (whichever his reason may is not required, he doesn't have to create one if he doesn't want to).
That wasn't hard, was it?
Now as a "Marketing Manager" at the company you work for I would suggest you start by making sure that the e-mail address on your website which people are being directed to when needing support is checked soon, where the OP can have a response from your team. I feel a bit disappointed just by reading through this thread at your replies, very shocked... You have an e-mail address for support inquiries for a reason, so use it properly.
Honestly I think it's just laziness and very unprofessional.
Thanks.