Paid for my item but i stole my change

I have this card you can use to save 10 cents on everything you buy. You can load it with money and pay by card. So if i realize i didnt have enough money on the card i can just pay the money i need with my bank card. Then you get that money refunded to your card. <br><br>So i had about 5€ in my shopping bag and i went to the self checkout. I put the code on my loyalty card and also add the missing money with my bank card then bought the items and then i cancelled the transaction and now i had 10 euros on my card again. I bought the items again and i also took the change. The change was also 5€ 5€ + 10€ = 15€ <br><br>I repeated this every time i went to the self checkout. it worked a few times but i got caught once. luckily they didnt call security because it was only 5€ but they took the 10€ on my card. I was a bit scared and didnt do it for a while but now i did it the last 5 times again. <br><br>I also stole a few times 10€ from the money dispencer and the ticket machine. But they caught me twice and then i stopped doing it.