I'm sorry to hear about the trouble this caused. Could you please try adding your billing method first? Use this link to see the options available to you and add one of those.
Afterwards, you should be able to purchase connects by following the instructions shared in this help article.
Feel free to reach back to us if you need any further assistance.
I'm sorry to hear you're experiencing trouble buying Connects. I checked and you may need to get in contact with your bank to ask them about the specific charge decline. If they confirm everything is ok on their end, you may reach out to us again so we can further assist you. Alternatively, you may use any other of our available billing methods in order to buy Connects.