I had a payment plan for 2020. I sent in a payment to pay off the full balance yesterday through the online account on the IRS website and chose the option to “apply to payment plan” and after it was sent it said the year it was being applied to was 2018, I don’t have a payment plan for 2018. Any suggestions on how to get a hold of anyone at the IRS? Whenever I think I’m close to talking to someone it says they are too busy and hang up
