Your invoices will be visible to you if you are the owner of the Hubgets organization. You can find them listed in Settings, in your Hubgets profile area. I am including a screenshot of the My Subscription tab below.
The same question, I do a lot of online shopping & usually get invoices of the payment confirmation but recently I ordered a pair of contact lenses using ColorEyeLens Coupons and even got the notification of the order confirmation. But I didn't get the invoice for it.