USCIS not disclosing latest status of my petition

Hi

A prospective employer, filed a H1 petition in 2015.On June 10 2015, I received an email saying my I-129 petition was approved. I have the receipt number.

Around November 2015, employer reached out to me and asked me if I can join his organization. Unfortunately I couldn’t join. So employer informed me that my H1 petition will be cancelled/withdrawn.

I called USCIS on “1800 375 5283”, they said that they cannot provide the information unless I have the employer on call. Also, they informed that “After the petition has been approved, in case if there is any cancellation/withdrawl of petition, same would not be reflected on the USCIS website (egov.uscis.gov)”

Employer is currently not respoding to my queries. I want to know if the H1 B petition was cancelled/withdrawn or if it is still active? Is there any way I could get to know the same?

I have the receipt number. I checked on the below link, using the receipt number and it still shows the status updated on June 2015.

Link: https://egov.uscis.gov/casestatus/landing.doCurrent Status on above website: Case Was Approved And My Decision Was Mailed"

Question 1: Is there any other way I can get to know the latest status based on the receipt number. (without reaching out to employer)Question 2: Though my petition was approved in 2015, can I still get it stamped in 2017? (just in case if the petition wasn’t cancelled/withdrawn)

ThanksRavi