EBS , Bank transfer entries are getting reversed automatically

Hi Experts,

my client is facing issue with EBS while posting entries for EBS , transaction type Bank transfer / Cash pooling ( transfer between two banks)

If cash is sent from my bank account it appears in bank statement as

Receiver bank A/c ....Dr

To Sending BankA/c

but in the SAP it is posting as

Outgoing Cash/cheque A/c ....Dr

to Main Bank a/c ................................this entry is right

but it is automatically posting the reversal

Main Bank A/c ....DR

to Cheque/cash issued a/c............which is wrong

posting rules are maintained as below

Posting Rule NCMZ
Posting area 1

Posting Key 40 Posting Key 50
Sp.G/L Indicator Sp.G/L Indicator
Acct symbol NCMZ IT50 DEBIT Acct symbol BANK

Document Type SA
Posting Type 1
Posting on acct key
Reversal reason

osting Rule NCMZ
osting area 2

Posting Key 40 Posting Key 50
Sp.G/L Indicator Sp.G/L Indicator
Acct symbol BANK Acct symbol NCMZ IT50 CREDI

Document Type SA
Posting Type 1
Posting on acct key