What is a coupon and how can I use it?

CryptoStrike cryptocurrency exchange service provides its registered Users with the opportunity to get a discount using "coupons".
A coupon is a unique set of numbers and symbols. It is possible to get it by conducting exchanges, participating in promotions of the service and / or in mailings to e-mails on the eve of the holidays.
All detailed information about the validity of the coupon and the percentage of its discount can be found in the letter on the e-mail.
Important! A new coupon is not provided when exchanging using an existing coupon.