No IRS Transcript Updates 4 Weeks After Responding to Letter 12C for $8,560 W2 Verification

I got Letter 12C dated Feb. 14, 2023 (reference number 0426527365) from the IRS about my 2022 Form 1040 return asking for W2 verification. The letter I received states: "IRS Department Internal Revenue of the Treasury Service AUSC SAO OMB Clearance No.: 1545-0074 AUSTIN 02 TX 73301-0034 In reply refer to: 0426527365 Feb. 14, 2023 LTR 12C 0 R ***-**-8076 202212 30 Input Op: 0426827365 00003253 BODC: SB 108 76063 Social Security number: 76221-427-25810-3 Dear Taxpayer: We received Dec. 31, 2022, Form 1040 federal individual income tax return, but we need more information to process your return accurately. Unless required otherwise, send us your reply within the 20 days from the date of this letter. Enclose only the information we requested and any forms, schedules, or other information required to support your entries and a copy of this letter. Don't send a copy of your return unless we ask you to do so. Don't respond with a Form 1040-X, Amended U.S. Individual Income Tax Return. We'll issue any refund due to you in 6 to 8 weeks from the time we receive your response. If we don't receive a response from you, we may have to increase the tax you owe or reduce your refund." Specifically, they need documentation to support the wage/withholding entry of $8,560.00 that I reported on line 25d of Form 1040. The letter continues: "To support the amount of wage or withholding entry of $8,560.00 on line 25d of Form 1040 submit: - Form W-2, Wage and Tax Statement - Form W-2G, Certain Gambling Winnings - Form 1099-R, Distributions from Pensions, Annuities, Retirement or Profit Sharing Plans, IRAs, Insurance Contracts, etc. - Other forms reporting wage or withholding If you don't have the form you need, contact the issuer of the income statement for a copy and send it with a copy of this letter. Otherwise, send us the information in some substitute form. For example, you can send an earnings statement or paystub from your employer which shows year-to-date totals." The letter also mentioned that I could fax my information to 844-254-2836 using either a fax machine or an online fax service. It warned me to protect myself when sending digital data by understanding the fax service's privacy and security policies. Due to high volume, they can't acknowledge receipt of my fax, and my faxed signatures will become a permanent part of my filing. I faxed all my documents to their number 844-254-2836 on February 20th, but my transcripts still show N/A when I check. I'm getting worried since the letter explicitly states they'll issue any refund due "in 6 to 8 weeks from the time we receive your response." Has anyone dealt with this verification process before? I'm getting anxious since it's been a while and still no updates showing in my transcript. I'm concerned because the letter sent from "AUSTIN 02 TX 73301-0034" clearly warned that if they don't receive a response, they may increase the tax I owe or reduce my refund.