I filed last year using turbo tax, and I still never got my refund deposited. It was accepted & everything. IRS tool to track it and it still says pending, what to do?

I did electronic deposit and I still have never received my refund. Also was still charged $40 from turbo tax. Tried to contact the IRS and no way to contact them, phone lines are off the hook. Has anyone gone through this? What do I do please?