Devious Journal Entry

Well let's add fuel to the fire. Someone or someone have stolen $300 from my bank account. I can easily prove the $40 check isn't mine as the signature and handwriting is NOTHING like mine but I don't know I can prove the $260 Walmart purchase aside from the fact I don't live anywhere near where that Walmart is but it's my word against no one's so..that's what worries me. And it worries me that someone is going to make even more purchases. My account is dangerously close to overdrafting if they make any more. I don't keep as close an eye on my account as I should, I realize that, but I noticed that much money missing for certain. I'm so fucking scared right now. I'm calling my bank tomorrow but this is really horrid timing for me with rent due in 5 days, the fact I'm going to a con in 4..I just..this is scary. I'm hoping they'll get it resolved by then but I have no idea how long fraud investigations take. I've never had this happen and I have no idea how the thief is doing it. The check was an obvious one but I don't know how they can make a card purchase when I have both my expired cards and my current one on hand as we speak. Has anyone ever had this happen before?