O JOGO FOI ABANDONADO PELA EA GAMES?

This forum is conducted in English. If you use a translation program addition such as Google you will see that login issues are dealt with in one thread and fund purchase in another. You are not alone in having problems.

Players from all over the world complain about the same problems. Login problems and problems with the acquisition of funds.
The problem is not one-off or local. It has appeared since the change of the layout of the home page.
None of the suggestions solves the problem, it only allows you with luck to be allowed to log in or buy funds.
Perform the necessary maintenance. Allow us to continue playing Tiberium Alliances.

As @gamerdruid has already commented, there are open threads where the problems of authentication to the game and in the acquisition of funds are addressed. I recommend that you check these forums in case you find help among the solutions proposed there.

No, the company that maintains the development of the game has not abandoned its care and progression, nor have those responsible for EA stopped receiving their benefits from the purchase of funds.

In the previous version of the forum there were sections for several languages, although currently only German and English remain. In any case, whenever we write something we forum readers use translation tools to try to help everyone.
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Como já foi mencionado por @gamerdruid, existem linhas abertas onde os problemas de autenticação do jogo e na aquisição de funds são abordados. Recomendo-lhe que verifique estes fóruns para obter ajuda entre as soluções aí propostas.

Não, a empresa que mantém o desenvolvimento do jogo não abandonou o seu cuidado e progressão, nem os responsáveis pela EA deixaram de receber os seus benefícios com a compra de funds.

Na versão anterior do fórum existiam secções para várias línguas, embora actualmente só restem o alemão e o inglês. Em qualquer caso, sempre que escreve algo, utilizamos ferramentas de tradução para tentar ajudar todos.

Traduzido com a versão gratuita do tradutor - www.DeepL.com/Translator

Maybe you can try with this tool:
https://translate.google.com/translate?sl=auto&tl=pt&u=https://forums.ea.com/en/commandandconquer/discussions