two questions - start of half question and free throw question

[hoopguy]

Let me preface this with the statement that I am not a referee but am interested in getting in the business and have been very involved in basketball for many years.

Situation 1
Half time of a travel game. team A is on defense and only 4 players take the floor. The 5th girl sitting on the bench that is supposed to be in the game suddenly realizes it and runs onto the floor. What is the proper call?


Situation 2

Ref calls a shooting foul and awards player 2 shots. After first shot players go for rebound and play begins. As game proceeds coaches from shooters team ask why only one shot awarded and ref responds that original shot went in. Coach calls time out to stop game and with official scorer explains that no basket scored. What should happen now?

Both situations happened as explained.