EXCEL VBA To combine cells into one seperated by

Hello,
Can you please help with an Excel  macro.
Column "A",
if the cell is called Tracking ID
Then, I need to combine all cells after the  Tracking ID cell into the first next row cell.
until the cell in Column "C" has a name which starts with QA:
and clear cells.

Please see sample attached sample, before, after.

Thanks,