OnePlus has been reaching out to its phone customers about apparent credit card fraud attached to purchasing phones on its system, and lo and behold, OnePlus has decided to disable its credit card payment systems.
As a precaution, we are temporarily disabling credit card payments at oneplus.net. PayPal is still available, and we are exploring alternative secure payment options with our service providers.
At OnePlus, we take information privacy extremely seriously. Over the weekend, members of the OnePlus community reported cases of unknown credit card transactions occurring on their credit cards post purchase from oneplus.net. We immediately began to investigate as a matter of urgency, and will keep you updated. This FAQ document will be updated to address questions raised.
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Source: [H]ardOCP – OnePlus Turns off Credit Card Payment Support After Phone Purchases