Getting a ‘syntax error’ error message when attempting to use this formula in Salesforce?

I am getting a 'syntax error' error message when attempting to use this formula as part of a workflow rule criteria. I have double-checked the field names are all correct. Can you tell me where I might going wrong?

AND (
NOT(ISPICKVAL(Payment_Detail__c, "Card")),
Days_Send__c = false,
ISPICKVAL(StageName, "Closed Won"),
NOT(Sector__c, "Customer 2"),
NOT(Product__c, "Customer 2"),
Account.Locale = "UK",
NOT((OR(RecordType.Name != "Customer",RecordType.Name != "Customer 2"),
NOT(Prime_Account__c != "TotalCo")
)

• This discussion was modified 3 years, 5 months ago by  Deepak.
• This discussion was modified 3 years, 5 months ago by  Forcetalks.
• This discussion was modified 3 years, 5 months ago by  Forcetalks.