You add it when you add your credit card

You can only add it once you create your account. You cannot apply a promocode later on.

That's strange, I received an email from support@mail.digitalocean.com titled "$5 Credit", signed Ben Uretsky with a promotion code contained within explaining they wanted to retain me as a customer.

Its strange that Digital Ocean would send me a promotion code if I cannot apply it to my account, isn't it?

For the record, I already have an account setup, I've added a credit card and such, but I received the email today, about a month after creating my account.

@xipherisroot Please open up a ticket, we'll set you up :]

I've also just been given a promo code but I can't add it to my account.

Please open up a support ticket, thanks!

Same here. Not sure if it was a system error.

+1

Same issue, just sent $5 through paypal thinking I could redeem it by following the e-mail link (I saw a reference to the campaign in the URL)