Hi Arturo (Clay),
Thank you for your response. After talking to the finance team, I understood that the card is declined because before you used to charge us several days later after the end of our subscription. The card has a limit per month and as you charged us for December in the beginning of January, the limit for this month was used already. If you try to charge the card tomorrow (on February, 1st) it should work.
Would you charge us on 28th (the day of subscription renewal) from now on? I'm talking to our Finance team about what we could do not to have this problem in the following months