Teller Posted the wrong amount for car payment.

USA, Jeffersonville, Indiana

Hey,

So today I went into the Bank, and I paid on my car loan. Like always every month. I'm always coming in, paying the same amount, each and every single time.

Which is 175$.

Today was just like any of those days. I went in to pay on my car payment. 175$. Paid it with cash like always, and then left, I've been paying on my car now for the last 12 months, and the people there at the bank know me pretty well.

Today, while driving though, my fiancee looked over at the recipet I had, and noticed they only posted 125$ to the account, instead of 175.

What do I do? I'm going to be calling the bank up tomorrow, to explain the situation, there's tons of camera's there at that particular branch. What should I do if they decide to say that they have no record of me paying 175, just 125?