Errol Garner

Hi, I recently was successfully registered for VAT with a registration date 4 years backdated. Obviously going forward each return will be for the standard 3 months. However the time from the backdated registration date poses a question. 1) Can I submit one VAT return for the entire period from the start of registration up to the end of my current accounting period for my first VAT return? 2) Do I need to wait for a company account or User ID or something else before I can proceed with MTD VAT return submission?