Can I apply for my H4-extension without doing COS as I do not have the latest I-797 and I-94

Hi, I am working on H4-EAD which is valid till Nov 2020. Mean while my H1 got approved and is valid till April 2020. Even though I had opted for Consular processing my employer did Change of Status and according to them now I am on H1 and they have not provided me the I-797 approval notice.

Q1> My employer is not ready to give me the latest I-797, I-94. Is there a way I can get these records?

Q2> Is there a way I can continue on H4-EAD since it has an extended validity?

Q3> Can I apply for my H4-extension without doing COS as I do not have the latest I-797 and I-94 from my H1 ?