Impossible to log in and buy

I wanted to buy the “Rock Beats Collection” as advertised, but I cant log in, because I dont remember having a password. and when I try to get a new password, your internet-page says email-adress not valid. I use this email-adress for as long as I can remember, I spelled it correctly and it IS my email-adress. So, I am sorry, but it seems like I cant buy your product.

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