Not leaving 1 taco so the review doesn't get deleted.
Network and server 504 errors. (when there are even responses)
Many promos sent though.
Unfortunatley past the refund period. (I forgot to set a reminder, as I gave them time to fix their constant errors).
You know you're in trouble when support is telling you to restart your computer (because that REALLY affects server errors on their end)
Frankly this is one of those appsumo failures you just to to eat.