Dallas Mavericks owner and world’s last Cyber Dust user Mark Cuban is still fed up with Clippers center DeAndre Jordan.

On Friday, Jordan took to Twitter, a social media platform people actually use, to send an apology over to Cuban’s way after Jordan reneged on his verbal agreement with the Mavs and instead rejoined the Clippers in free agency:

But Cuban, who at this point is squeezing every last drop out of the situation to pimp his lesser-known, snapchat-esque Cyber Dust app, wasn’t buying it. On Saturday, Cuban “dusted” a response to Jordan via a letter to Mavs fans saying, “When is an apology not an apology? When you didn’t write it yourself. Next.”

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Cuban then goes on to pitch Dallas fans on the acquisition of Zaza Pachulia, at which point Cuban was probably typing through very real tears. May this story never end.