unable to add funds

Try deleting current card and if possible adding a different one. If not possible try adding it in again.

I have done that

always the same, I can not load the funds, sometimes a month if it goes, and another two do not ... that's impossible and it's not a problem with my card, I have renewed it 3 times ...
I already deleted the payment method, I put it back and it still does not go, I have tried another card and it is not going ... there is no right we paid for this game we deserve a decent service ...
Since they do not update the game to solve the errors of the funds among many others, and stop both patch and hurt the players.

If you are using credit card, ensure that the game account has a verified email address, otherwise it won't work. Same for other payment methods.

this is all right, as I say a month lets me load and the next 3 or 4 months no.
In my opinion it is the system of verification of the web, because if it allows me to make purchases in Origin with my current card and it does not allow me to load funds in the Commmand & Conquer: TA.
This is the dilemma. On Monday morning I let myself carry out a recharge of funds, and in the evening, night no longer, it tells me that the card could not be verified ...
it's all right, I've checked it 40 times

I was not referring about the card, I am talking about the email adress you registered the game account with. The email has to be verified.

Also make sure you are not behind a VPN you cannot process that way generally.