No problem I accepted your invite. Just send an item you don´t need anymore for the Achievement. Just a headsup : If you don´t immediatly get the BFA Achievement don´t be alarmed, it sometimes takes a while/a few Steam restarts or till the next day to unlock.
Have a nice day ;-)

Thanks for Magika! My PC has been and is busted for about 1.5-2 months now, so I just got the ability to accept it!