If your purchase is not credited yet, and you would like to contact Stake.us support team to help you with that, you should first find your transaction hash since they will surely ask for it.
You can find it in your wallet history (external wallet, from which you sent the funds).
Just go to your transaction history, find the transaction to Stake.us, and you should be able to open it in one of the crypto explorers and find your transaction hash.
Transaction hash is a string of numbers and letters, and it should look something like this:
6146ccf6a66d994f7c363db875e31ca35581450a4bf6d3be6cc9ac79233a69d0
Or it can be in the form of a link from the crypto explorer:
After that, feel free to contact Stake.us support team for further assistance.
Best of luck with your gameplay! 🤞