One possible solution to the challenge you are facing with HDFC bank is to look for other banking options that are more flexible and better suited to your specific business requirements. You could research other banks in India that offer foreign outward remittance services and see if their documentation requirements align better with your business model.
Hope you find the information helpful. You are free to contact me for further discussion.If you could spare two minutes of your time to write a review, It would be really grateful and very happy to read it.
Thank you.