Upgrad — Specialization Fees

I am taking a course on Product Management and initially, the marketing team convinced me to opt for specialization after the course.

I am towards the end of the course (without specialization). I do not wish to pursue specialization and wish to get a refund for the same. However, when connected with upgrad they mentioned they cannot refund an amount that has been paid.

As I don't wish to avail the services. I would want a refund for the same. Can you please help me out here.