The Inheritance Tax helpline has been shut down with just a message to ring normal Tax helpline, this cuts you off after 40 minutes. So not only is there no way of getting confirmation from HMRC on IHT forms submitted and IHT421 for Probate but there is no way of contacting IHT offices. There also no way of confirming tax paid has been received. Webchat not available for IHT. Shocking state of affairs. No complaints answered either even to Tier 3.