State Bank Of India [SBI] — myntra initiated refund but not processed by sbi bank

Address:

Near Rtc complex, 535501

On 19 th of july 2019, myntra initiated worth Rs.3498 asRs.1749 and Rs.1749 worth 2 transactions with reference number:”[protected]”for both into my debitcard.but the Sbi bank has processed only Rs 1749.remainining Rs 1749 I didn’t get into my account till now.so many times i have contacted with customer supportteam.they said contact with ur home branch and when i went to sbi branch, they said jst contact with ur merchant.but the merchant shared that reference number with me.so this is how i am very disappointed.kindly please diapute my concern.