How to enroll developer.apple program for multiple years Yesterday, I enrolled in the developer.apple program for one year, for 99 USD. But I want to increase this for more 3 years. Yesterday, I didn't find any option where I can increase the time period. It had only one option: 1 year 99.0 USD What is the process if I want to enroll in the program for next 3 years?   

Thanks a lot in advance.
You can't enroll for multiple years at one time.  You can only enroll 1 year at a time.  You can read more about renewing your membership here.

You can sign-up for automatic renewal, if you're worried about forgetting to renew.  Just go to your Membership page and check the box for Auto-Renew Membership.