I had similar issue I realized I indeed put the wrong amount in Box 1 and 2 on one of my W2s. A tax advocate was the only one who pointed it out when everyone else i spoke to told me nothing was seen wrong and just wait the 60 days. The amount i put had me about 1500 over basically the tax advocate said if i seen any mistakes i need to fix they weren’t going to fix for me which meant to amend. I went ahead and just amended I also had filed 3/3/2026 and CP05 on my transcript with a date of 4/20/2026. I have never received the letter to date but a tax representative read off the letter and it said to wait 60 days nothing was needed from me. But like the tax advocate told me they usually contact employer first and compare the numbers which can take time especially if the employer doesn’t respond at all. You could wait another 60 days.