You have a great idea on prepaid card and also have done its research and understands it could promote such a product, but do not really know how to design it or don't have the manufacturing capacity to make it. You may turn to ODMs. Shenzhen Sunlanrfid Technology Co., Ltd is such a producer. Typically, ODMs also fabricate the product they design and their clients get the products branded in their own names and offer them in the market. In the case of an ODM, you might have little to no control on product specifications and so you need to set adequate parameters and frameworks in which the ODM needs to work.
Sunlanrfid is a global quality supplier and manufacturer of nfc label. The rfid smart card series is one of the main products of Sunlanrfid. Constant inspections: the product is manufactured under the constant inspections which are conducted by the QC team. They carry out an ongoing inspection method to ensure the quality of this product. The product is equipped with a compact and high-tech magnetic stripe. This product is environmentally friendly. All its materials and parts can be recycled indefinitely in line with the environmental protection principle. The product is SGS and BV approved.
Sunlanrfid has been continuously improving the quality of customer service. Check it!