Deductions & credits

 I have never filed taxes in my life because I was on ssi. I just got cut off because I got a job. 

 

Now that I am working full time for the very first time, they say I owe taxes, and won't tell me how much, and won't let me open a irs account. I have never had a credit card, or any type of loan so there's no credit report. 

 What can I do other than waiting for billions of years on hold with the irs to talk to someone?