They will first entice you with free courses. When you try to register, they will not allow registration without fees. Even if you pay fees and complete all course requirements, you will not be provided the course certificate.
On top of it is impossible to contact their customer service or learner service because no email id is provided. they have a web form for complaints but nobody responds to complaints made through it.
After using it I felt that it is basically a portal to earn money by deceiving students