problems exchange polcadot

I changed polkadon CRO in my Atomic wallet and have been waiting for hours for me to receive the CRO. I wrote to the Atomic support and got the answer that the network is overloaded and it can take 72 hours until I have the token in the wallet. I then looked at the block at Polkadot and saw the message: too little balance to low to send value. I was looking for a solution to the problem on the internet, but I still don’t understand the posts because I’m new and don’t know anything about github or polkadot.js and don’t understand either. O didnt receive my CRO yet. Can someone help me please?