Pmi — PMI revoked my PMP Credentials after 2 months

I have given my PMP exam in Dec 2020 after preparing for 6 months to 1 year almost and after getting training online for 20 days finally got the PDU for the same and i scheduled the exam in Dec 2020 and while giving exam I was under the proctor for 4 hours and followed all the ethics. Even in 10 min of break, i did not move from my seat and i cleared my exam with flying colors and PMI send me PMP certificate and Badge as well.

However, After 2 months, i received and email from PMI that my PMP credentials are revoked because my answers were similar to 158 other people. How can my answers could be similar to other and if i have given exam under proctor following all ethics, then either PMI should give my credentials back or refund the fee i have paid to them.

I have given my PMP exam in Sep 2020 after preparing for 5 years almost and after getting training 1 times and other from private institute and got the PDU for the same and i scheduled the exam in Dec 2020 and while giving exam I was under the proctor for 4 hours and followed all the ethics. Even i did not take any break, i did not move from my seat and i cleared my exam with flying colors and PMI send me PMP certificate and Badge as well.

However, After 2 months, i received and email from PMI that my PMP credentials are revoked because my answers were similar to one other people. How can my answers could be similar to other and if i have given exam under proctor following all ethics, then either PMI should give my credentials back or refund the fee i have paid to them.

and i have taken 2nd time exam also, i was passed

Looking forward for your support please.