How to request an instant pro-forma invoice


At Gas Cage Shop we understand the importance of a fast turnaround when an item is urgently required.

We now offer an instant pro-forma invoice service which will immediately email you a pro-forma invoice (PDF format) with your required products itemised including all the necessary information to allow you to make payment straight away. Accepted payment methods are BACS, credit/debit card or cheque.


  1. Add required items to the BASKET.
  2. View BASKET and then proceed to CHECKOUT.
  3. Enter delivery/billing address details.
  4. Finally click REQUEST PRO-FORMA INVOICE rather than PROCEED TO PAYMENT button.

Your pro-forma invoice will then be automatically generated and emailed to you within seconds!

It really is as simple as that !!