quick help please

[pramain]

hi 
im currently on New South Gold Sports base pack . i want to add its HD addon, there are two options

1.South Gold Sports PHD ADD-ON(price:175 LockinPeriod:1 Month)
2.South Gold Sports PHD ADD-ON 3M(price:117 LockinPeriod:3 Month)

if i go for 2nd option i have to pay 117rs each month yeah? 
what happens after 3months?

please let me know your ideas . thanks

 

[Navi08]

It is 3months locking period. After 3 months u will pay only 117rs/mnth.. :k