Well, it would appear that you have no way of buying tc, atm. Here are the solutions:
1 - Buy a mobile phone
2 - Go to your nearest bank, open an account (takes 10 mins), and get them to send you a debit card. Deposit money at the bank, and pay for things online with your card.
3 - open a paypal account, and get someone to send cash to it who you know, and pay them back irl.
Op. 2 is the easiest, i'd say.