Advice On How To Go About Suing Home Warranty.

I will condense this as much as possible, but it’s been ongoing and a lot of back and forth.
I have American home Sheild, I opened a claim in July for my freezer not working. They send a guy who says the sealed system needs replaced not worth the repair better to replace since it’s an older fridge. Apparently AHS says we’ll send someone to fix it, so after a month of waiting (2 contractors who won’t answer, 1 outside of their area) I get connected with someone. This man lied about coming out on aug 24 and putting parts in to AHS, while telling me he was waiting for parts. Waited til beginning of sept and called AHS to find out the ticket is closed bc he claimed he put parts in. Tell them no he hasn’t even been to my home yet! Reopened and speak to him he says I’m just gonna tell them it needs replaced. Fine, finally get approval that I would receive a new fridge or cash in lieu payment. Well it’s only $600 left of my $2k budget because he took $1400 in parts and labor. They said they sent him parts and he claims to have put parts in and been out twice. Bold face lie. Tell the scammer what they said and he claims no I didn’t get that much and I’ll call them and make it right even if I have to pay it back blah blah. Well of course he won’t and he’s sticking to his lies and I’ve been fighting with AHS since, I’ll be told we’ll send a tech out to verify there are no new parts in the fridge and then we’ll adjust your CIL and then someone else will turn around close that ticket and say no the CIL stands the scammer says he put parts in so nothing we can do. And I keep pointing out, it’s not he said she said, I have the proof! And why are yall okay with this man lying and scamming yall too!? And this cycle has now gone on over a month and I’m done. I need help with the steps to sue. I’m in Ohio, so I believe the first step is to file with Ohio attorney general? But any advice and help with how to go about this and or lawyers for this type of thing would be so truly appreciated. Thank you.

Location: just outside of Cleveland Ohio