Bajaj Finserv — Bajaj insta emi card

I am applyi for bajaj insta emi card and they don't assist any type queries after the my emi card payment 530 done. i have central bank of india account number and i tried to e mandate but there is no mode of registration for CBOI, i tries to contact custmer care but no talk only computer based help nathing happend
i live in indore and there is no offline service centre for assist, there is only store where if you buy a product from there so they asist you .. not any type of help by bajaj finserv. there are many error in app and not otp comes
. i want to refund my money if there is not offline / online relexation