Return accepted Feb 15th 2019. Says its still being processed. Got a letter saying call irs to verify identity but it seemed like a scam. Still don't have my return. Why?

Because the letter you ignored was not a scam.  The IRS asked you to verify your identity--a very common request from the IRS as a way to prevent identity theft and fraud.   Do you still have the letter?  Call the IRS and arrange to verify your identity so you can get your tax refund.

To call the IRS:IRS:  800-829-1040  hours 7 AM - 7 PM local time Mon-Fri

Listen to each menu before making the selection.

First choose your language. Press 1 for English.

Then do NOT choose the first choice re: "Refund", or it will send you to an automated phone line.

Instead, press 2 for "personal income tax".

Then press 1 for "form, tax history, or payment".  

Then press 3 "for all other questions."

Then press 2 "for all other questions."  It should then transfer you to an agent.

never ignore at letter from the IRS or a state.  if ignored,  it can cost you a lot of money in taxes, penalties and interest.  if you think it's a scam call the IRS at 800-829-1040.  for the state go to the its website or its department of revenue website to get a number to call.