How do I apply a coupon code?

Coupons can be redeemed right when you sign up for an account. Click the "Have a coupon?" link and enter the code in the coupon textbox. If it is valid, it will show you the appropriate discount.

If you already have a Mailshake account, then make sure you're switched to the team you'd like to apply your coupon to and in the menu choose Settings then Billing. Click the pencil icon by your billing address then click NEXT

Then click on "Have a coupon?," enter your code, and submit the form by clicking Save.