This problem can be caused by several reasons - most common of them are failure of e-mail server, anti-spam filter settings of your corporate e-mail or incorrectly written e-mail address.
Feel free to contact our technical support by telephone at the following number +7 (495) 228-55-55. Tell our specialists about your problem. They will ask for the last 4 digits of your credit card number or payment number and approximate date and time of your purchase. Please, provide them with all necessary information.