Hey,
Looking for someone who is capable of developing a custom payment add-on for Gravity Forms. I have full documentation of API etc. It’s in polish language. but that should not be a big problem. I am a technical person and I can explain everything. I have already tried to sort this out but failed. Looking for a professional help, someone who has experience on GF hooks, filters and actions and creating addons 
Send me email if you think you can help!
Best,
Tom