Bajaj Finserv — how I get experia id

Yesterday, i bought a washing machine by bajaj finserv and got emi card in app but whenever i tried to log in cuatomer portal otp was not received and i asked to shopkeeper to gave my experia id or customer id or loan account number etc but he does not gave me any id. Now, my issue was that how i know my emi's details and all detail about my loan. I'm trying to say that how i saw my currently loan amount and transactions and whenever i was send message to bajaj helpline no. I got replied that my number is not registered them. I'm confuge what' going on.