How to fix?? Error purchasing packs with points! HELP!

I worked with customer service for days on this. I was not able to make the purchase I wanted in the timeframe I wanted. Ended up getting something else, and it was all trash.

I eventually was told it is a bug, and they fixed it. I tried again, and it worked. 

Now, it's happening again. 

It&s sad, it feels like bait & switch. 

The last time I wrote EA, they said I had to go through Microsoft. Ridiculous