The command "box" shows the mentioned user on the box

[GerardSmit]

Describe the bug
When you execute the command >box with a mention and message. The mentioned user is displayed on the box.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://www.patreon.com/mikibot.
2. Click on "Become a patron" and get "Miki+".
3. Redeem the key.
4. Meme some kid by using >box [at]username Cool dudes
5. Be sad that their name is on the box.

Expected behavior
The name shouldn't be on the box.

Screenshots