+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
Giving people a realistic timeline is important. Some less complex cases are processed quite quickly while others take quite a long time.

How to know if my case is less complex? I got letter from ICAC. And it says regular hearing (3 hrs).
 
True, but also depends on factors like whether the RPD received a security screening confirmation from the CBSA; otherwise, the claim won't be determined without a hearing until they receive it.

Take a look here: https://www.irb-cisr.gc.ca/en/legal-policy/policies/Pages/instructions-less-complex-claims.aspx
I believe Claimant will ne requested for file review process only after they are cleared with CBSA screening . Without they got clearence , RPD wont ask for file review to claimant . I mean if you are asked for file review evidences from rpd that means you are good at CBSA Screening . Correct me if i am wrong