Your Hownd account is connected to Stripe, an online payment platform. You created a Stripe account as part of your initial account onboarding. Purchases made through your Hownd Promos are processed by Stripe. Revenue from these purchases is deposited into your bank account by Stripe, as well.
“Payout availability depends on a number of factors such as the industry and country you’re operating in, and the risks involved. When you start processing live payments from your customers with Stripe, you will not receive your first payout until 7–10 days after your first successful payment is received. The first payout usually takes a little longer in order to establish the Stripe account.” – From Stripe.com
Find more details about Stripe payouts here.