Payplans plan and discount in URL as parameter

Hi Manisha, I was wondering if it is possible to insert a plan and discount in to a link. The link would look something like this:
https://www.redmine-x.com/payplans&plan=1&discount=2

Obviously, the URL format is not important. The question is whether Payplans can do something like this. The desired outcome is: the user gets and email with a link, clicks an up-sale link and ends up in the checkout with a discount applied. It would help sales.

Thanks a lot. Michael