#23 I liked this design and logo a lot, possibly it would be better to have the magnetic strip on the credit card black, which you have and a faint gray line for the outline of each credit card
#9 i like the way you put the arrow going up for positive, gaining value but again as said in the other comments the credit cards should be black strip white with a gray outline
The upward arrow in entry #9 should be black, "Credit Services" should be more bold looking, credit cards should be white, maybe gray outline with a black magnetic strip, credit card should look like entry #31
#31 "Credit Services should be bold, I like upward jaged arrow like in entry #9, maybe a thin fading highlight grey line on each side of "Credit Services"
#74, #75, #79, #52, #10.....A new twist.....what about having all black & white letters for the middle of the logo, ie black magnetic strip, bold black capital letters for "INTERCHANGE", keep grey letters for the "CREDIT SERVICES" with fading lines THEN 2 or 3 green lines all way across bottom of logo then 2 or 3 blue lines across top. The lines start out very thin on bottom of logo then increase in size by the time you finish the last blue line. Maybe the last blue line is the same thickness as the "INTERCHANGE" letters. Also, maybe round off the four corners of the outside lines so it kind of looks like a big credit card.
#54, #57, #60....A new twist.....what about having all black & white letters for the middle of the logo, ie black magnetic strip, bold black capital letters for "INTERCHANGE", keep grey letters for the "CREDIT SERVICES" with fading lines THEN 2 or 3 green lines all way across bottom of logo then 2 or 3 blue lines across top. The lines start out very thin on bottom of logo then increase in size by the time you finish the last blue line. Maybe the last blue line is the same thickness as the "INTERCHANGE" letters. Also, maybe round off the four corners of the outside lines so it kind of looks like a big credit card.
#98....as stated above.....THEN 2 or 3 green lines all way across bottom of logo then 2 or 3 blue lines across top. The lines start out very thin on bottom of logo then increase in size by the time you finish the last blue line. Maybe the last blue line is the same thickness as the "INTERCHANGE" letters. Also, maybe round off the four corners of the outside lines so it kind of looks like a big credit card.