[Customer service] A best platform/company to pay online transactions and other fees, like online payment, buy/purchasing anything online. [Product or service offerings] It provides debit/credit cards worldwide to send or receive money. [Fees and charges] It's fees depends on the platform which offers Mastercard's debit/credit card. [Ease of use] It is easy to use. Just enter you name written on the card on any online website and card number and CVC code and expiry date. And you can also use in offline in shopping malls and restaurants where brands offering Mastercard payment method. [Security] It is very secure platform to do payments and receive money.