Original link from email:
http://link.einsteinboulevard.com/ga/click/2-18643055-3960-68397-35060-63529-18730d6d85-909931aa13
Redirected link: https://www.caterpillartrails.com/survey/aanbod/source=8399/subid=e:hsjPy78LOUcUiuuFGKa-1HJHxRM6AWtfKrccUrG_VxU&subid2=einsteinboulevard.com&subid3=8399&firstname=Gidon&surname=Vermeulen&address=Cornelis+Houtmansstraat+34&email=die820d290s20%40protonmail.com&zipcode=1212BH&city=Hilversum&phone=626485009/nrp=f75rpfdqp4dg6o6z75wbfs6vn
After clicking thru some buttons the final link you will be redirected to is a page where you will pay for the shipping of the "free" phone:
https://mygamefun.com/nl/gateway.html
Please keep in mind that this is targeted to Dutch customers.