Method 1
1) Type this in the in-game chat:
"Hello, Misty! I am (Your Name) from GameHag, and I have completed (Game Task). I sincerely hope that my task will be accepted."
2) Take a screenshot
3) Post your screenshot(s) on a website such as Imgur. (https://imgur.com/)
4) Send Misty the Imgur link via GameHag or to "[email protected]" to appeal for your task. (Include an explanation if necessary.)
Method 2
1) Open GameHag in another window, and have it in the background of your Game such that it shows your GameHag username and the task being completed in 1 screenshot
2) Take a screenshot
3) Post your screenshot(s) on a website such as Imgur. (https://imgur.com/)
4) Send Misty the Imgur link via GameHag or to "[email protected]" to appeal for your task. (Include an explanation if necessary.)
This information is from: STRIX's Discord server (https://discord.gg/d8gvx6g)
Join this Discord server! (If you need more assistance)
nice ideas you got
I contacted Misty - was told to submit again. Got rejected again. Contacted Misty again - nothing for days. Went to #support discord, asked for help. Was told to contact Misty 
my WoT task get rejected like 3 times now!!!! I hope this method works.Thanks for the advice.
Hello I am very new and a bit confused. I have in my notifications You have started the task in War Thunder. Send a screen and get SG for it. Does this mean I completed task in game and not sure what to do next. Help I can't find the beginners posts anywhere.
@LiliM if you haven't gotten any other notification of whether the task was accepted or rejected, then wait for it to come. There's nothing much you can do.
@ranzacado Thanks again for answering my very basic beginner questions. I find it a little confusing here but I am sure I will get used to it. Yes I will wait :)
Ok thanks ill try it maybe it works but tasks are not guaranteed to be accepted.
Thread bump for those who have not read it.
in 3 steps
Choose the game that interests you and play itfor free.
Every game has some quests for which you will receive Soul Gems.
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
You know that on Gamehag you can get real rewards for free, right? Join us, complete walkthrough and get your chest!
Follow the steps below if your task had been Rejected