H1B pay scale start date after approval

[userh1approved]

Hi,

I got to know that my H1B got approved through my employer (They called USCIS to know the information as my OPT extension application was denied.) and they claim they are yet to get the approval notice. They submitted Form I-824 (for further action on approved petitions)and still waiting for any notice. My OPT denial notice states that my H1 was approved on Oct 2, 2018 and that was the reason for denial of OPT extension. In this case, the employer said that they won’t pay the H1 salary for the past months and will start pay according to H1 norms only AFTER they receive the HARD COPY of the approval notice. Is this how it would work? What are the other sources that I can get my approval notice?

Any inputs are appreciated. Thanks