InApp problem

[lunt]

Hello,
I bought both maaloo apps (geocaching and outdoor) when I ran on WP 8.1 and I used voucher from one app to integrate this product into the second app. But it don't know that I integrated one app before and I can't find any voucher code for the product when I have installed win 10 on my device. Is any possibility to get the voucher code from the app?

Thanks for help...