Bajaj Finance — non return of 1 emi

I have purchased 1 lg led model no 43uj652 on 30/05/18 from suneja sons, tirath mansion near overbridge ranchi for rs 58000/- under finance from bajaj finance ltd. Under the terms & conditions ihave paid rs. 19748/ immediately to the owner and remaining amount as emi of rs. 4834/- per month commencing from 02/07/18. As per the provision of the scheme explained by the staff of bajaj finance ltd. First emi would be credited back to my a/c immediately after debiting the account. As such in actual sense i have to pay 1 emi less as per the provision of the scheme. However my a/c has been debited with rs. 4864/- instead of rs. 4834/- on 02/07/2018 but no credit has been afforded to my a/c no [protected] of axis bank ltd. Till date. When i enquired from bajaj finance staff he disclosed that scheme code has been erroneously fed 89359 instead of 89629. Please take up the matter with concern co. & provide justice to me.