hi all, thinking of switching over to Black, but wanted to understand more first:

Q1a. how much do I need to pay for a starter pack if I am going for B10?
Q1b. how long is the default validity from the starter pack?
Q1c. and every month how much do I need to pay?

Q2a. for B10, I will get 1GB of data per month, so if I cannot finish the 1GB of data, it will be carried forward to the following month until I finish it?
Q2b. Do I need to pay anything extra other than the amount from Q1?

Q3a. for B10, if I finish the 1GB of data before the cycle date, can I top up the data again?
Q3b. if yes, what are the options for the top up?