<prompt> Human: Hello, first time home buyer here. ive been closing on a house for the last 3 or so weeks, been sending documents back and forth getting everything squared away. I signed loan estimates for the house that had the interest rate of 5 now the final loan document states 5.5. I know the mortgage rate has gone up but shouldnt I be locked into the original interest rate when I got prequalified and started the process? should I contact the loan company or is this normal practice?Thank you.  <response>: If you were just prequalified, it mightve just been a loan estimate. You probably didnt lock the rate in. The rate is locked when you tell them to lock it. But it doesnt hurt to ask. 