-snip- its the actual coinbase 'base' app thats trying to charge me! when i go to withdraw it the 'WITHDRAW' button is greyed out and it says that i need to add £2 in ETH to cover "fees"
This info changes things.
Firstly, you said "
2 ETH" but it's actually "
£2 in ETH".
So it's not as high as a potential scam and may be a legit claim.
Next, Base Wallet is actually a self-custodial wallet (
cannot confirm though since it's closed-source)
But the main point is, sending a "
wrapped" coin that's not from an exchange actually requires a few coins of the blockchain where the token belongs to be able to create a transaction to spend it.
Because the token can't be used as "
network fee" and you only have tokens.
However, the issue is why it's requiring more than what it initially suggested...
Perhaps you've deposited the wrong coin? Because it's specific to the coin and network that's displayed when you tried to send. Sending another token will not work.
e.g. (
if sending a token in Ethereum Network but there's no actual ETH in the wallet):

In this example, the coin that it requires is ETH in Ethereum Network and not something like "
wrapped ETH" which is just another token.
And if you did deposit ETH, it should be visible in your Wallet tab as "
Ethereum", if not, there's something wrong with your ETH deposit.
Note: if you're successful on depositing ETH, before proceeding to send, make sure that the recipient address and wallet/exchange of your wrapped BTC supports the Network shown in your Base App
or else, it will be troublesome to recover it or even be unrecoverable. In most exchange, the correct network should be selected.
BTW, Base Wallet (
formerly Coinbase Wallet) should be legit as long as you downloaded it from official sources:
link(
there no other way to verify it)