Activate Payback MAX for you Amex Payback

Unfortunately, it is not so trivial to activate the Payback MAX Boost for your Amex Payback cradit card. There no option in you online customer center. However, by following this link you can easily activate the booster online. With this link, you get to the page below. After clicking "online anmelden", you login to your account. The second and last step is to order the Payback MAX Boost for 15€. I hope this helped, as I was searching for the solution quite some time :)