Are you saying that they're lying about Peng's age by two years? How can they get away with that?
I've only been reading this forum for about a year, so maybe I am a naif..
The Chinese are notorious for putting false dates of birth on paperwork to make their athletes eligible for competitions they are either too young for or too old for. And it is not unique to skating. It happens in practically every sport they are involved in.
Of the skaters that this thread is about, Peng Cheng is actually the only one that has not been caught with differing dates of birth... yet!
Below is a table summarising the differences and the implications for the Pairs skaters that there is confusion over:
[TABLE="class: grid"]
[TR]
[TD]
Skater
[/TD]
[TD]
Set 1 (ISU)
[/TD]
[TD]
Set 2 (CSA)
[/TD]
[TD]
Implications
[/TD]
[/TR]
[TR]
[TD]
Zhang Dan
[/TD]
[TD]4[SUP]th[/SUP] October 1985
[/TD]
[TD]4[SUP]th[/SUP] October 1987
[/TD]
[TD]Too young for Senior Majors in 2001–2002 season if second set correct.
[/TD]
[/TR]
[TR]
[TD]
Zhang Hao
[/TD]
[TD]6[SUP]th[/SUP] July 1984
[/TD]
[TD]6[SUP]th[/SUP] February 1982
[/TD]
[TD]Too old for Juniors in 2002–2003 season if second set correct.
[/TD]
[/TR]
[TR]
[TD]
Yu Xiaoyu
[/TD]
[TD]2[SUP]nd[/SUP] January 1996
[/TD]
[TD]2[SUP]nd[/SUP] January 1998
[/TD]
[TD]Too young for Juniors in 2010–2011 season if second set correct.
[/TD]
[/TR]
[TR]
[TD]
Jin Yang
[/TD]
[TD]16[SUP]th[/SUP] May 1994
[/TD]
[TD]16[SUP]th[/SUP] May 1989
[/TD]
[TD]Too old for Juniors from 2010–2011 season onwards if second set correct.
[/TD]
[/TR]
[TR]
[TD]
Sui Wenjing
[/TD]
[TD]18[SUP]th[/SUP] July 1995
[/TD]
[TD]7[SUP]th[/SUP] May 1997
[/TD]
[TD]Too young for Juniors in 2009–2010 season, and for Seniors in 2010–2011 season, if second set correct.
[/TD]
[/TR]
[TR]
[TD]
Han Cong
[/TD]
[TD]6[SUP]th[/SUP] August 1992
[/TD]
[TD]6[SUP]th[/SUP] March 1989
[/TD]
[TD]Too old for Juniors in 2010–2011 season if second set correct.
[/TD]
[/TR]
[/TABLE]
If you want to read more, including the singles skaters that were also affected, here is the Associated Press story, as shown on the ESPN UK website:
http://www.espn.co.uk/figure-skating/figureskating/news/story?id=6120559
As for Peng,
psusanne actually said she was "
at least two years younger than she officially is".
The date of birth the ISU has for Peng Cheng is 23[SUP]rd[/SUP] April 1997, which would make her 19. But, given that it is obvious that she is going through puberty at the moment, I would go as far as to suggest that she could be as much as four or five years younger than her ISU Bio says!
Yes, that sounds a lot. Like, surely that sort of discrepency is too big.

But, five years just happens to be the difference between the two DOB's for her new partner, Jin Yang.
So, it is not impossible. In fact, it is entirely probable.
CaroLiza_fan