Sandpoint???

How long ago did the money get deposited? Talk to your bank manager and see if they can reverse the deposit. Explain that you don't know what this money is for, you didn't ask for it or authorize it. I would also see if they can give you a new account number because, since these people have your account info, your money isn't safe. Did you apply for a PDL online, by any chance?

They obtained your account information some how, you must have applied for an online payday loan at some time or another, it didn't necessarily have to be Sandpoint, it could have been some other Internet payday loan, and even if you started to apply but did not complete your application they still got your information. I do know that Sandpoint Capital is also known as Namakan Capital.