Im having an issue withdrawing the remaining funds in my DHL wallet and sending them to my Electrum wallet on TAILS. You're told "To securely withdraw, please sign your withdrawal address with your PGP key and paste the resulting signature." I have tried this but it says the signature is invalid. I'm using their public PGP as the recipient but still no luck... Thanks in advance. (Yes I've posted this in DNMNobbs but to no avail.)
you sign it with your own private PGP key.