I lost my 2 bat

I have lost my 2 bat suddenly I don’t know how but I was just surfing and then I saw that there was only 0.95 bat I actually had around 2.9 bat please help me what should I do??? Actually it wasn’t sent to my wallet for tipping or for withdrawal… I was waiting for it to be sent to my wallet but now I have lost it. please respond and try to give it back