Tata Motors Nano — i submitted my document and 1799 rs on same account no.

Hi i submitted my document on 16 / 7 / 2015 and i also pay money in their account 1799 rs. I talked a person his name is abhishek acharya and his contact no. Is [protected] and their customer care no. [protected], +[protected] their gmail id is [protected]@gmail.com. And now they told me that i will have call on tomorrow for telephonic interview. So can you please tell me what action should i have to take?