"We didn't receive your tax return on time"I've recently received a letter from HMRC about a £100 late fine about a self assessement tax return that I need to pay for the tax year ending 5th April 2022. I have never been self-employed, and always have paid PAYE tax. I am trying to contact them on the phone however have been on hold for over an hour with still no answer (This is ridiculous). I have done their self assessment online and that confirms I do not need to send a tax return myself. The Gov.UK website also can not confirm I am who I say I am, so I can not appeal the fine online. Is anyone having any related issues or dealt with this before?