Hi!
You don't need a credit card to purchase online using your PayPal account. As long as you have a bank account/s, you can use it on purchasing online. All you have to do is to link your bank account to PayPal, you an either use you ATM's like visa,debit,Master cards, etc.as long as may balance yung account mo.

There's an option on PayPal where you can link accounts,you'll have to enter your card's infos like, account number account name and card number. You can also managed and monitor your purchased made on your dashboard. There's nothing to worry about your money, its safe there. Every time you'll making a purchase, they will ask you to enter your pin numbers, which is the pin you'd enter won't get save on their data base. And every purchases made, they will send you an email notification about your transaction and other details. Its safe and the fastest way to make online purchase. I tried it many times using my PayPal account without any credit card..
Hope this will be helped to you.