2012 A5 Broken Front Passenger Seat.

[Steve A.]

Hi Guys can anyone help, I am not sure what I have done but whilst moving the front Passenger seat of my wife's car.
The backrest flopped back and now wont stay in the upright position. Needless to say I am really in the dog house. can anyone suggest a cause / solution. Many thanks Steve

 

[NHN]

Assuming its manual, thats a new one, somethings failed.

Pics or video may help.