I can't get this to work... I dont understand!...
see the post above yours from shorena, it could be either 27.3 µBTC or 27.3 mBTC (most likely it is 27.3 µBTC) which is confusing for newbie sometimes since it is no way the wallet ask the make a payment of 27.3 BTC. You could add a
screenshot here so we can all check what is going on with your wallet.
As you are new I will warn you be careful wit people who offer help in PM. Some scammers look for people who are new like this thread and aske for private key, or seed, and try for a scam.
But take screenshot of message as said in previous message. I think it is a smaller unit being asked for then amount you mentioned in BTC.