You are welcome @arbazalam!
The promo code that is 10% off at any purchase is a special limited offer, and the promotion by marketing on pay per click site, that I shown in my guide may get you referrals.
For referrals Hashflare is saying this:
Quote:As a referrer, you are eligible to receive 10% referral commission bonus for every purchase made by any of your referrals, excluding reinvest and balance purchases. The bonus is added to your account's balance in BTC shortly after the purchase is confirmed.END quote
Now if you use the limited period code you get 10% off at any purchase plus 10 % off IF one of your referrals buys any contract witch is paid directly in btc.
So in conclusion this method is very profitable, one of the best on the market, on the present moment.
Wow that is great and thank you again for the explanation in the easy ways..@cynetyc