How to subscribe before purchasing equipment at 10% off

Please could someone help me purchase a plan (100$, billed yearly) and then get 10% off all my purchases?

Do I really need to purchase a device first?

@jer007 wrote:

Please could someone help me purchase a plan (100$, billed yearly) and then get 10% off all my purchases?

Do I really need to purchase a device first?

You can’t (they are not that stupid!)