I'm sorry that I misunderstood your original request. I understand now that you would like to trade your FPGA Mini Rig in for an ASIC Mini Rig. I would be glad to help you with your request. The best way to go about this to ensure that we have your accurate shipping information, etc. would be to do the following:
Please follow the link I provided in my previous e-mail. Although this is the link for Single Upgrades, I can modify your order once you have created it. (It won't be necessary to make a payment just yet, just so that we have the essential information needed to modify the order.) Here's the link again: https://products.butterflylabs.com/fpga-single-upgrade-to-sc-single.html
Please let me know once you have done this and we can go from there. If you have further questions, please let me know or please feel free to call our office during regular business hours.
Thank you,
Debbie
BFL Customer Service