The customer is not to share his CV number, pin number with anyone.
No body other than you knows what is written and disclosed by you in the dispute lodged by you.
The dispute lodged with SBI card shall not be resolved in your favor.If amount is not paid by the due date interst 3.75%/pm, Late payment charges, finance charges, GST etc shall be added by this CC company.
Lodge police complaint and as soon as possible and let Calcutta police nab the fraudster.
Refrain from calling on phone and thus alerting the fraudster.
Once caught this fraudster can reveal that from whom he had received the info of delivery of SBI card.
It might be inside information from SBI card and courier employed by it (Blue Dart/First Flight etc................) or its agencies.