ProtectBuy is a service that will allow even safer use of Diners Club cards on the Internet. The ProtectBuy service is completely free and consists in additional confirmation of selected transactions with an SMS code. You will receive the code on the telephone number registered at Diners Club.
For those for whom security is the most important.
Where is the service available: in all online stores that have implemented the ProtectBuy standard.
The service is marked with the following logo: 
HOW DOES THE SERVICE WORK:
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ONLINE SHOP
- →
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PAYMENT BY CARD
- →
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CHECK THE DATA CORRECTNESS
- →
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ACCEPT WITH THE CODE RECEIVED IN SMS
