Automatic gearbox gear change problem

I have Nissan March K13 2011 Automatic Start/Stop Last week I want to shop on the way back automatic gearbox did not change gears.
On D only first gear kicks no second or thrid gear kicks any rpm. Rewerse work.
But then I tried something When driving on D if I make N than D in one second second gear kicks in.
then I tried again D N D and third gear kick in. but normal D driving no gear change.
Can anyone help.