Hello FDETABOADA,
I’m very sorry about your issue, hopefully there is just the upset left and you were not injured permanently.
As far I remember was never before reported about breaking seat tubes - contrary to bottom tubes (as you found them at this post.)
Guess your reseller contacted already Ming cycle and started a warranty claim?
Unfortunately produce your image links just error messages - could you perhaps send me the pics in a mail?
Best wishes,
Chris