Amendment applied before extension both got approved with different dates for the same client which one need to consider

[Sree_d]

I applied for H1B amendment in Nov 2017  as my visa expires in may 2018 I applied for the extension in Feb 2018 in premium( both petitions are for the same client) . so now I got both approved but I am confusion with the approval dates.

Extension got approved on 25th April   with dates valid from ( applied date from Feb 2018 - Feb 2020) , as we linked amendment petition with extension after few days on April 30th my amendment also got approved for the date mentioned at the time filing petition  ( applied Nov 2018 - May 2018 ) .

iam confused with dates so  which we dates do we need to consider extension or amendment ?. my attorney suggested that extension and amendment are both for the same client and I am good with extension date.

any advises or thoughts will be helpful