You say you efiled, but then say it was mailed. If you mailed your return, it will be a long wait since the IRS is not processing paper returns right now.
The online link is your best option to track your refund. I have attached a link with more answers from the IRS as to why your refund may be taking longer to process.
Federal refund questions
There is a delay in processing the returns as the IRS is not processing paper returns at the moment due to Covid-19 and social distancing policies in effect.
IRS operations
Go here for stimulus info: https://www.irs.gov/coronavirus/economic-impact-payments
This FAQ site may also answer your questions.
https://www.irs.gov/coronavirus/economic-impact-payment-information-center
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
