Reply To: Recieving error messge

[WERN LI]

I need to re-activate my license of my serial number i purchased beforehand, because i am gonna use costx for my assignment next week, i will show my serial number on my email: LIJ69@student.op.ac.nz

If it was not available, please let me to purchase one more serial number, please.

I need to use costx urgently, hopefully someone would reply to me as soon as possible because i have been waiting for response since Monday.