Question?

Why when i try and use my visa they alwayas have to put it in a plastic bag then try it…it gets on my nerves

why is this ,what the hell does it do???

I have seen that done before. Supposivily it helps scan the cards . If the card has been used alot. Im not sure what it does. Maybe magnefies the effect or something. No clue. But yea ive seen it done and worked

google is your friend

Let’s just say that when you swipe the card through the reader, the magnetized particles in its stripe generate a signal with “ticks” in it at intervals that the machine is able to interpret as digital ones or zeros. A scratch or other defect in the magnetic stripe can cause a spike (i.e., brief fluctuation) in the signal that a too-sensitive reader will interpret as a tick, meaning that the encoded data will fail the parity check (the numbers won’t add up right) and the card won’t work. Wrapping the card in plastic increases the distance between the read head and the magnetic stripe, thus reducing the strength and crispness of the signal and smoothing out anomalous fluctuations. Behold, the card works