I see many codes posted publicly here. What if 2 person will provide the same code to Tata Sky helpline, will they check and inform us that someone has already used the code or some has already applied with the same code before me, OR they will take the code that time without any verifications.Obviously later on, I won't get benifit from the code as some one else got better preference than me and he will be benifited.Is this right? Can you please tell me the correct process of how it works?