I received an email with the special offer - ESO Plus Buy One, Get One Free Offer!

We'd like to reach out and offer you a special one-time only, buy one month, get one month free ESO Plus membership deal.
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For more information about this special offer, or for information about our Crown Store gifting program, simply reply to this email.

So I bought one month of ESO Plus membership, but I haven't gotten the one extra month for free!

So I replied this email twice - everytime I received almost immediatelly the answer saying: Status: Closed - Duplicate
but no response from anybody.

I tried to fill the customer support form in the game - no response either.

It seems I was deceived.

You are the only luck, that I have spent 1800 hours with this game and I love this game. Or else I would stop playing and stop paying my money to you.

No response whatsoever, I will probably never get the month for free. You will not probably miss my money. I thought I was your paying customer. Am I really nothing to you?