EMPLOYER REFUSE TO CANCEL SPASS IPA.

Respected All,

I would like to seek your advice about that currently I am in overseas. I received a Spass IPA from an employer on 02/03/2020. Employer said to me to come in Singapore on March 20. But I could not back in Singapore in March'20 due to border restrictions. Also, I pointed out to my Employer that there are discrepancy about Salary and Occupation between IPA and Letter of Appointment which I had signed. But the employer got angry on me and I just got myself cool. Later on I heard from one of my friend that the employer hired another employee instead of me. During Phase 2 in Singapore, I wrote a message to the employer whether still he is interested on me to hire or not. If no, he should cancel the IPA. Despite of several message to the employer like employer deaf to hear. The employer does not reply to my single message. I was very disappointed and sent to the employer thru email of my resignation letter on 15/6/2020 but he did not reply to me and do not cancel the IPA. The IPA itself was supposed to expired on 01/05/20. But due to recent Circuit Breaker in Singapore MOM extended the IPA till 31/8/2020. I am worried if MOM further extends the IPA then I can not find another employer due to existing IPA is valid. Couple of days ago I got a job offer from another employer and the employer said can not apply for me Spass as existing IPA still valid. Should I report to MOM with list of evidence that employer refuse to cancel the existing IPA? If yes, Will MOM be entertain to my report as currently am in overseas? 

There is one more question, if there is a valid Spass IPA  besides can an employer apply Work Permit for that person?

Appreciated to your kind advice.