After you file

I filed 1/29 accepted same day. Path message until 2/15 then I got the 1541 take action code. I called and was told I was being reviewed for income verification & that could take 45 days. I updated to "being processed" mssg on wmr on March 1st, and I received letter 5071c Saturday 3/9 in the mail to Id verify...I just got off the phone with the IRS who stated that I passed the verification process & to expect a refund within 6 weeks but to continue checking wmr for updates. Said if I hadnt received it within 6 weeks to call this #...& gave me an 800# to call after my waiting period was up. I'm just wondering why I'm being told 6 weeks when everyone else was told 9?!