If you want to get ChatGPT Plus and get such errors like “Your card was declined. Please try a different card” or “try debit card” – then you might try this way below.
I am sure it is a temporary problem and OpenAI will solve the issue in the future.
But for now, to get chatgpt 4 the only way is getting PLUS plan, so the method can be useful for you.
As you noticed the payment is provided by Stripe + Link.co.
So you just need to open Link.co account, add payment and shipping address, and then go to ChatGPT payment page, there you will see you already have a chosen payment option by Link.co – and just click and you will get success.
Once you have filled payment and shipping fields in link.co, go back to ChatGPT Checkout page, refresh the page and you will see pre-chosen payment option there. Click to pay and that’s all.