Amazon India — account locked by amazon

Address:

Surat, 395006

Dear sir,
My name is NILESH SUTARIYA email id is S.[protected]@GMAIL.COM which is registered with Amazon. My Amazon account is locked i don't know exact reason why my account is locked . I try to contact customer care but they tell they can't help me only investigate team unlock my account. I sent mail on [protected]@amazon.in, [protected]@amazon.in and [protected]@amazon.in but they not listening anything they send me mail that [ your order can't be delivered please fax your credit card details with billing address ] but i haven't use credit card.