Lost samsung(The galaxy A32) found on the sidewalk.

Owner seemed to have disabled cell service some time after i picked it up

Here is what ive tried:

• Unlocking it, no luck at guessing the combo
• Brought it to the T-mobile store, because it used a tmobile carrier, until it was disabled. The employees said they couldn’t do anything because they are a 3rd party store and the cell service is disabled
• Nothing in the emergency contacts that i can call(except for emergency services)
• I’ve tried to text&call the number that sent voicemails to this phone many times. It seems to be an automated voicemail service.

What else can I do? Is there any programs on my PC i can unlock it with? Hopefully getting to the contacts.