If I buy a package of 50 files, can I order them one at a time, like 1-2 today, 5 more tomorrow, then 5 more in a month, and so on? Also, what's the exchange rate for JCoin? Could you please tell me the exact amount and how much Litecoin I need to send for a package of 25 files (ionCube and SourceGuardian), as the rate fluctuates and varies across exchanges.