The only option for your is:
Order from your account for others and when the product is "delivered" get the escrowed fund of miner.
You will get more coupons in the future.
I may buy some S1 coupons.
I would like to thank everyone for correcting me on my error.
I was not aware that you cannot transfer coupon IDs.
I guess I could sell my Bitmain account

No seriously, If you want to buy an account with 30
coupons, I'd be more than happy to sell it to you.
Best Regards,
- AlextheBitcoiner