Depending on the network the transaction was made, you can check on its block explorer. For example, if it was on Ethereum network, you can check on https://etherscan.io/.
Whether or not you want to put your wallet address here is up to you, many users have done so in the past, but please keep in mind that all information on the blockchain is public and transparent.
I check my Adress at etherscan anmd Polygon but there is no transaction.
So i have to contact Moonpay again right? They write me when my adress is korrekt (and the adress is right) then i have to contact MetaMask with the my transaction ID from Moonpay and they can fix it…
So get Answer from Moonpay. And thx for your support so far
The transaction is done and on opensea i see my Metamask Adress in the owner list. But i cant import, i follow your guide but the Adress is not accepted.