Order date not work for expiry date

Hello,

We are setting up site with woocommerce for downloadable product for restricted users. Product should expire within 365 days.
Woocommerce counts order date only from day You set up order, not from order date You provided manualy.

Please add order for 2017-01-01 and save, then check expiry date is wrong (2018-04-12), should be 2018-01-01.
Hypotetically we will get payment (bank transfer) on 2017-01-05 and we deliver digital software on this day. Expiry date should be 2018-01-05.

From business point of view should works like this.

Could You help me with this problem?

Regards,
Sebastian