Cannot recieve my product i have payed for


Please help, i registered an account and called it Shack_ and used a certain email that is correct. So i bought a product but when i clicked ‘contact seller’ so i could explain what i wanted it said i need to activate my account to see this page. But i never recieved the email and cant activate that account so therefore cannot recieve or contact the seller about the product i just bought! please help and let me know what i should do!