I use the EU VAT. I setup the "Initial Receipt# Number" with the value 1 then I made some testing orders. I can get the invoice in the format MYSTORE-%year%-receipt_number where receipt_number is dynamically generated starting from 1. Now, after many test, I would like to reset the counter to 1 to be ready to go live. I tried to delete all user and payments but it doesn't work. How can I do? Thanks in adavance.