How to use the Curve referral code, step by step
- Open the linkThe link saves NB3223PN and forwards you to Curve's sign-up. Get the Curve Pay app from there and register as a new customer.
- Add your cardsLink the debit or credit cards you already use. Curve charges whichever one you pick each time you pay with your Curve card.
- Make five purchases of £2 or morePay with your Curve card at least five times, £2 or more each time. Until then the reward shows as Pending in your Curve wallet.
- Spend for 30 daysFrom then on you earn 1% back on your Curve card spending for 30 days, up to £15.
What the Curve sign-up bonus pays
What the Curve bonus is and which purchases count
Curve pays the reward in Curve Cash Points, which go onto the Curve Cash card inside the app. They have no cash value and can't be withdrawn; you spend them through Curve.
At 1%, the full £15 takes £1,500 of Curve card spending within the 30 days, so run your regular big costs, like groceries and fuel, through Curve in that window. In the EEA the same offer runs in euros.
Most card purchases count. ATM withdrawals, money transfers, financial services, gambling, tax, fines, university fees, Curve Fronted payments and anything paid from your Curve Cash balance earn nothing. Curve cancels rewards earned through duplicate accounts.
Does the Curve code still work?
Yes. This page was checked on 24 September 2026 against Curve's 1% cashback referral terms on curve.com, and the current offer runs until 31 December 2026. NB3223PN comes from the author's own active Curve account.
Curve invite code vs referral link: is there a difference?
Not in what you get. The link on this page opens curve.com/join with NB3223PN attached, stores the code and sends you on to sign-up, so there's nothing to type. Curve only applies a code when you create your first Curve account, which is why it has to be in place at registration.
What Curve is
Curve started in London in 2015. It puts your existing bank cards behind one Mastercard, so you carry a single card and choose which account pays. Go Back in Time moves a past payment to a different card, and Smart Rules can pick the card for you. Curve UK Limited issues the card in the UK, and Curve Europe UAB in Lithuania issues it in the EEA.
What the person who shared the code gets
The same deal as you: 1% back on their own Curve spending for 30 days, capped at £15 in Curve Cash Points, once you've made your five purchases.
Curve referral code questions
What is the Curve referral code?
It's NB3223PN. The link on this page saves it and takes you to sign-up, so you don't need to type it.
Can I add the Curve referral code after signing up?
No. Curve only applies codes when you open a Curve account for the first time.
Is this Curve code legit?
It's a personal code from a real Curve account, and it goes through Curve's own sign-up. The reward follows Curve's published referral terms.
Does the Curve code work in Germany?
Yes. The offer is for new customers aged 18 or over in the UK and the EEA, and in EEA countries such as Germany it's paid in euros.
Can I cash out the points?
No. Curve Cash Points have no cash value and can't be withdrawn. You spend them through Curve.
