Programmatically check whether Client's
Scenario 1: VAT No. (VRN) and VAT Registration Date are Entered
Scenario 2: VAT No. (VRN) and VAT Registration Date are not Entered
Scenario 1: Client's UTR, Postcode and NINO. are Entered
Scenario 2: Client's UTR, Postcode and NINO. are not Entered