Not received vpn subscription invoice. I need to cancel it and refund it

I haven’t received my invoice or receipt for premium vpn subscription. Now I want to cancel it and create a ticket for refund and there it is asking invoice number.

Type of device (Desktop, iPhone/iPad, Android phone, etc.): android

Brave version:

Detailed description of the behavior:

Hello @Chaubeynikk Please leave the part requesting an invoice number blank. You can submit the ticket without filling it out as it is not a required field.