Shortcode bug

Hi,
We have a problem with the premium plugin where in the shortcode front-end the coupon (ONLY WITH EXIXTING COUPON) shown at the end of a subscription is numerical instead of the actual woocommerce coupon code. We found the issue to be at row 578 of shortcode.php where the shown code should be $coupon = new WC_Coupon( $code ) ->get_code()

We attach an issue screenshots (wrong & right).

We fıxed the issue but wıth the next update it will be overridden, could you plase let us know if you can solve this wıthin the next release?

Please, let me know
Best Regards
Ivan Somma