advice .AD Domain Registration

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Hi everyone! So, I had a long conversation with the guys at Marcaria and it seems that they contacted their locals in Andorra and got to know that I must own a trademark before getting the domain. Here's the trouble, the domain I want is of 2 letters, and Marcaria doesn't seem to allow it, but other registrars do, but they also need trademark registration in Andorra. So, Marcaria seems to provide that, but they got in touch with their locals and it seems that 2 letter trademark can not be obtained..

I'm stuck here, and I really like the domain I've chosen.. Any help will be highly appreciated