39 s payment cards may be aggregated in step 104 fig4 is a block diagram showing a technical architecture of the server 5 the technical architecture includes a processor 222 which may be referred to as a central processor unit or cpu that is in communication with memory devices including secondary storage 224 such as disk drives read only memory rom 226 random access memory ram 228 the processor 222 may be implemented as one or more cpu chips the technical architecture may further comprise input output i o devices 230 and network connectivity devices 232 the secondary storage 224 is typically comprised of one or more disk drives or tape drives and is used for non volatile storage of data and as an over flow data storage device if ram 228 is not large enough to hold all working data secondary storage 224 may be used to store programs which are loaded into ram 228 when such programs are selected for execution in this embodiment the secondary storage 224 has a processing component 224 a comprising non transitory instructions operative by the processor 222 to perform various operations of the method of the present disclosure the rom 226 is used to store instructions and perhaps data which are read during program execution the secondary storage 224 the ram 228 and or the rom 226 may be referred to in some contexts as computer readable storage media and or non transitory computer readable media i o devices 230 may include printers video monitors liquid crystal displays lcds plasma displays touch screen displays keyboards keypads switches dials mice track balls voice recognizers card readers paper tape readers or other well known input devices the network connectivity devices 232 may take.