I'm buying bitmain  coupon

1- needing coupon 350, 420 or 500 usd

2- We can do this for everyone to follow one at a time.

3- we can qualify in buying trust

4- payment in BTC

5- we can also make copun exchanges and rest in fashions as payment method


6- I prefer to make the negotiation open without using PM so that everyone can follow the outcome

7- we can communicate on social networks like facebook and whatsapp for better security or use guarantee methods on the purchase of coupons

8- we can use custody services for our security