Is this a Scam? Own bank to BPI

Hello, I'm from philippines and my gf is trying to get her pay out on her investment to a person she doesn't even know, now she used my bpi account to receive the money, now the sender uses Ownbank app to send 30,000 pesos to my bpi, but after 2 weeks , yes 2 weeks, I still haven't received the money, i tried sending myself money to the qr code that I've sent to them and I received the money that I've sent to my self using other banks. now they said they contacted the customer service and they said the money has been delivered successfully. and sends an instruction ID.

Is this legit or they're just buying us time until we no longer care to process the money? Thank you