Short answer: nope!
The only way to purchase Gold is through our own, authorized in-game shop (processed securely by the iTunes Store).
There are many third-party websites offering in-game currency for War Wings, but none of them are safe to use. Ignore whatever these websites claim, they are NOT sponsored by Tencent. Often, third-parties will ask for log-in credentials. This will give them access to your game and account. If you give them those credentials, we cannot guarantee your account's security.
If you purchased Coins from somewhere other than the game, we, unfortunately, cannot assist you any further, as your account has already breached our Terms of Service.
We reserve the right to ban game accounts with Coin orders from third-party websites.