discount Code but still showing paypal/credit card

Hi there,

my scenario is i am offering 2 memberships and for limited i want to offer my users to use a Coupon code which will allow them to register FREE.

so my membership price is $36/year , and coupon discount also $36.

How can i disable/remove payment option if total price become – 0 ?

Thanks.

https://www.ads-software.com/plugins/paid-memberships-pro/