Is there a good number or contact to reach someone at IRS? My return was accepted on 2/12, but I have not received my refund yet. Others that submitted after me have!

My return was not that complicated and it has never taken this long before.  I did get my state refund ages ago.  I also do not have my stimulus check yet either. I get that there is a lot going on at the IRS given the changes, but others that filed after me have had their refunds ages ago!  So frustrated that I can't reach IRS to find out why I have such a long hold up.  Their site says to contact them if it has been longer than 21 days, but then their