We have 2 options to offer discount i.e One-time discount with Coupon and Store-Credits
You can buy credits which provides you a huge discount and the option to download any file anytime using those credits means no need to place a bulk order in one go. https://vecras.com/pages/store-credits
Otherwise, you can use a suitable one-time discount according to your order value.
Feel free to contact us for any questions.