My husband and I purchased our Hancock & Moore chesterfield sofa 2 years ago this month, I love the sofa; but was very disappointed last evening when I noticed a button tuft had undone from the backrest of the sofa. I called the furniture store we purchased it from this morning and they weren't sure if it would be covered under the warranty. Wondering if anyone has had experience with a tuft repair, I know tufting is difficult to begin with--so trying to figure out what I should be prepared for. 2 years isn't a long time to have an issue with a piece of furniture that gets light use?

Thanks in advance for any insight!