Boudewijn Rempt Software has worked with several companies and studios to develop features and improvements to Krita. This is a commercial service, and we do not take feature requests or suggestions without signing a contract.
Contact boudewijnrempt (at) gmail (dot) com for more information. THIS IS NOT A USER SUPPORT ADDRESS.
Krita is located in the Netherlands. You might have to contact your bank before a payment can go through. For the USA, you might have to put a "travel notice" in for the Netherlands for this to work.
If you continue having issues, please contact us so we can learn more about your issue