What can I do about my ex not removing me from joint account?

My divorce was finalized in December 2024. We didn’t have children or own property so we just took what we had prior to the marriage and what each acquired during and left it at that. I figured he’d close the joint account or remove me so there was no mention of it in the divorce.
Last week I found out my name is still on the account and when I went to try and remove myself they wouldn’t let me without him present. He ran off to the army and is stationed where there are no branches of this bank.
I’m terrified he will ruin my credit or something with that account.
I was told I can close it myself but I do NOT want the money from the account.
Is it legal for me to close it and send the $ to him via cashiers check or something? I can’t afford court costs or attorney fees atm.
Advice?

What can I do about my ex not removing me from joint account?
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