ABOUT $750 FEE, JUST NOTICE

MY FRIEND,BIG HUG TO YOU!

FOR THE $500, I AM CLEAR NOW, SO I WILL DISCUSS THAT WITH MY LAYOR ON NEXT MONDAY.

ANOTHER THING,MY LAYOR DID NOT MENTION ABOUT $750. DO I HAVE TO PAY $750 UNDER MY STATUS?( MY COMPANY FULL-TIME WORKER NO MORE THAN 25, I AM H1B VISA, IT IS THE FIRST TIME FOR EXTENSION, I WILL WORK IN THE SAME COMPANY)
SO WHAT'S MY PAYMENT DUTY FOR EXTENSION? $320,$750 AND $300(I-529 FOR MY DAUGHTER H4 VISA)? WHEN I READ YOUR POST,I JUST NOTICED $750 ADDITIONAL FEE.

BY THW WAY, IF I APPLY FOR EXTENSION NOW, HOW LONG WILL IT TAKE TO RECEIVE APPROVAL?

THANK YOU!