How long does it take for first bill with pre-payment meter?

I switched to Bulb in April 2019 and there was already a pre-payment meter installed. My online account has since been showing that ‘payments and bills’ is coming soon and ‘electricity usage’ is coming soon as shown here.

Could someone tell me how soon is soon?

One of my complaints with previous supplier was having to wait a year for a summary and was assured by Bulb representative that this does not happen with a Bulb account. I really would prefer quarterly statements by the time a year has passed the receipts are hardly readable.