Hi! Just to clarify. The event Anniversary Red Envelope allows a player to recharge and get a rebate. You get 20% rebate for yourself to a maximum of 20,000 (20k assuming you recharged 100k), while there is a 10% rebate to send to your group members to a maximum of 10,000 (10k assuming you recharged 100k).

The amount you can send is based on the 10% rebate of the amount of ingots you recharged for and not your current coupon amount.