One thing worth mentioning is that I made my initial TOR application on 13th August but heard nothing back from HMRC apart from the reply email with a reference code. So I called them up after 2 1/2 weeks and spoke to a very helpful person called Kate. She said my application had been lost in the system but if I resubmitted the PDF copy of my TOR application which I had saved and provided the support documents (passport copy, proof of current address and future address in UK - exec suites booking confirmation) then she’d get it sorted quickly. Within a couple of hours the TOR approval letter was in my email inbox. So my advice is if you have any issues give them a call.
Phone 0300 322 9434 Option 4 Email nch.tor@hmrc.gov.uk