Carding
Serious carding websites, for example Cheapcvvdumps, Validshopru and Dumpcardswithpin, use bots to increase card validation activity with tiny transactions. They often use well-known platforms such as Amazon to test their vulnerabilities and exploit a large number of users. This type of activity is known as carding
Bots
A bot creates a shopping card, adds products there, sets shipping information and uses collocation services. In order to maintain anonymity, carders change their IP and use untraceable devices. They also have surprisingly primitive botnet, but it's enough for carding