I have had the exact same experience... Bought 5000 BF Coins, purchased a cool looking winter pack, it didn't show up so I tried purchasing again, this time it was linked to a different pack then the item disappeared entirely from the store, like its future content that was mistakenly displayed early.
I spent an hour texting EA, during which time I was transferred and had to explain the whole story again all while waiting 5-10mins for responses, half of which were 'thanks for this information'. The result was: check the forums for similar issues. I called them out on this and demanded a refund for the items I never received, they said I'd need to process a refund through Xbox. So I did, but now I'm -3800 BF coins...
I'm a loyal fan of the franchise and encouraged many people to buy this game. Please make this right EA.
