Not receiving my full tax return

I filed my tax return on 2/26 and got the emails from state and federal to expect it in my account within 3 weeks, I’m expecting to get $1,468 and for some reason there is only $602 pending to be deposited to my account today. Neither my husband or I have any offsets they would be taking money from. Nobody answers the phone, the IRS tracking website tells me “we cannot provide any information about your refund. You must wait 24 hours after you get the acknowledgment email that your tax return was received by the IRS”, as I said I received this email on February 26. The only answer I’ve gotten was from a tax expert through another source who mentioned it might be the stimulus I did not receive last year however, there is no sight of the remaining $866 expected to be deposited. I will continue to call any and everyone I can but hope to get help here. Hard to say I’ll be returning to TurboTax next year, very frustrating.