Acima review: Unauthorized credit charges

My ex-boyfriend admitted to taking out a loan to purchase a ps5 in my name. I keep seeing charges that said acima but he told me they were for a mattress and tv which I later found out was through another leasing company.. I asked for the ps5 so I could return it and he said he already sold it. Idk what to do because he refuses to make payments and refuses to return the ps5. I never authorized this sale and have no idea how my identity was verified since I was unaware of the entire situation and was not present at the time of purchase. Please help me transfer these payments to the correct person who leased the ps5 because it was not me and did not approve this loan.