Debug Countrows with multiple filters error

Hi, I have a measure that counts number of items based on its Origin and Acceptance Datetime

TotalACCEPtoRFIDINACCEPItems = CALCULATE(COUNTROWS('Scan Event DataQ'),FILTER('Scan Event DataQ',[ACCEPTANCE DATETIME]<>BLANK()&&Switch(True(),
[OriginMailCentre]="Christchurch" && [CHM RFID IN ACCEP DATETIME]<>BLANK,1,
[OriginMailCentre]="Manawatu" && [MTM RFID IN ACCEP DATETIME]<>BLANK,1,
[OriginMailCentre]="Auckland" && [AKM RFID IN ACCEP DATETIME]<>BLANK,1,0
 )=1))

However I get syntax error. Appreciate any help to resolve this. Thanks.