I've done all of this with my cases (110288522 & 111063558), having had the same problem of missing Apex Coins. I've had a very similar experience to the OP:
Original case required another case to be opened.
That case was set to 'awaiting player input' despite nothing being sent to me.
When chased, it was stealthily changed to fixed, despite it not being fixed.
I've been greeted by 3 different advisors, effectively starting again, none of whom have actioned anything.
I've uploaded the required screenshots 4 times so far.
Live chat is not an option whenever I try to chase it, despite being advised I should speak to someone in live chat.
Two subsequent cases that have appeared in my list of cases immediately go to an error screen.
I had an initial response when I aired it on Twitter but once it went to out-of-public-sight DMs, I've had nothing.
This has been ongoing for three weeks so far.
I've not been able to find a direct complaints procedure - all roads end up at the same place.
So yes, I've had exemplary bad service from EA. I doubt even this post here will give me anything new. I will likely get redirected to the same place I've been a hundred times and told to try the same things I've tried. I dare someone to take responsibility and fix the issue. All the info you need are in those cases. I double dare you.
