i-797c without i-94 and extension only for 2 year

[texasearcher]

I received I-797C approval notice however it does not have i-94 attached with it and online also it hasn't been updated. 

Also, they give me extension only until 2017. Is it because my passport is expiring in 2017 ? 

Can anyone describe please, how does the approval notice look like 

Thanks

[pontevecchio]

You would be better served by calling the Lawyer involved. It is possible he will send you the appropriate documents soon.