My wife and I each received our Letter 6475. Hers said she received $1400 which was accurate. Mine said I received $1400 which was not, I only received $108. When filing my taxes I put $1292 on my line 30 since I was still owed that money. However upon receiving my Federal refund I was shorted $1292. The IRS believes they sent me $1400 when in fact I have only received $108. How do I dispute this or get it corrected?