It is a Maestro, but seems to have a very short card number and no EC card, yes. and I am using websites that have paypal payment option, How to use the Sparkasse Maestro card online - Finance. Not all maestro cards have an issue number. If the main number of your Maestro card has 16 digits, there is not an issue number. If this number is more than 16. Ask your bank or building society for a Maestro card as part of your current account, or search and apply online for a prepaid card from one of the many issuers.