So this is strange. I got a spam mail from a Chinese phone case vendor where I ordered a case for my wife's phone last year. I just bought a new one for myself and it's not a very common model. I get a single spam from that vendor exactly for a case for my phone model... I never go any other mails for other cases from them. I bought my phone online in Europe. I did google cases for it, but never went on their site (only European). I have no idea how they did this...