After you file

millions of refunds are taking much longer this year. some taxpayers have waited 6 to 7 months.  there is nothing anyone can do to speed it up. if it was accepted the IRS has it so all you can really do now is wait.

son's return was accepted 2/23. got refund 9/3 that's 6.4 months. sometimes the IRS refund site does not work.

There is the IRS  Tax Advocate Service - but even they may not be able to help even if you are experiencing financial hardship. see this link. they tell you to call 800-829-1040 which is the IRS's standard number and you know the issues with trying to get through. besides, they probably won't be able to help unless the return is in its system. 

https://www.taxpayeradvocate.irs.gov/get-help/refunds/expediting-a-refund/