I am having a wired Broadband connection with Home500C plan. As I am in and out of town and I sparingly use my landline(Voice+Broadband), I am thinking of shifting to Prepaid-broadband. Pls guide me on the following..1. Will I have to close my current BB Connection(userid) and apply for a new userid on prepaid-BB Connection 'or' Shd I just apply for a plan-change?2. Would I get the refund of advances on BB-connection(Like one month rent of BB I deposited when I took BB connection?)3. As I sparingly use internet, what wld be the best way to go on prepaid (a) Value-based recharge OR (b) Volume based recharge... I think (a) is right for me..Pls advise..