They change all the time, just keep all records of what u sent and it will come. It once was 8-10 weeks , they basically let their mail pile up and do it all beginning of month.
Hopefully u did certified mail so they had to sign for it.
It takes about 8 weeks. I applied in jan end of, missed feb mailing and got it in mar. They mail the letters out once per month and it is in the beginning of the month. By law they have 35 days ... I got mine at, just within the 35 days. They disapprove it quick. Read the paperwork and law. After not hearing from them,on day 36 the law says that you are considered approved. Most likely, you will get it in the beginning of july.