How Much Does It Cost To Have A Seatbelt Fixed How Can I Fix A Seatbelt With A Knot That Has Rachetted Up To The Top?

How can I fix a seatbelt with a knot that has rachetted up to the top? - how much does it cost to have a seatbelt fixed

During a trip is, the average seat belt tied at the back of my agreements, and is used to help maintain a large refrigerator in the city in the backseat. If the cold has been released, the nodes of the strap can not shake rachetted before the summit, and we can not undo the current node and the use of seatbelts. Suggestions on how to solve this problem? If I put it to the store or dealer for repair, how much it would cost to take over?