public String makePaymentMember(String customerId, float amount) {
ObjectFactory objectFactory = new ObjectFactory();
CreditCardDetailsType ccDetails = objectFactory.createCreditCardDetailsType();
ccDetails.setCreditCardType(CreditCardTypeType.fromValue("Visa"));
PayerType ccOwner = objectFactory.createPayerType();
ccOwner.setName(customerId);
ccDetails.setCardOwner(ccOwner);
amount += transactionFee;
String status = creditCardPayment.authorize(ccDetails, amount);