Bajaj Finserv — excess amount deducted and no responds for this

Dear Team I have boughted 1 Washing machine and 1 grinder at vasanth & co through bajajfinserve as 0% interest ( 2 A\C) on same day. Now they deducted amount other way. They closed 1 account based my information after 4 EMI paid. and opened new A\C. ( They wongly mentioned EMI 09 instead of 10). But They still not adjusted what I paid, at my welcome letter. And another A\C they deducted Rs.300 (150*2) extra (over due as they said). But i never did late payment or missed payment. I cannot make call to the customer care(?) there is no care. and if they picked our call, they dont know how solve the problem. they just byepass the issue thats it.I have registered / raised so many complaints through mail and portal also. Nothing happened. kindly help me in this regarding. I am ready to (pay) close this 2 accounts. I have all the proofs in my hand.