I've told people not to send me anything. The postman keeps asking for amounts of money (I paid about 6E for a small box of contact lenses) and I get an e-mail invoice, but it just says taxes, not how they came to that amount.
Recently the post office wouldn't let me send chocolates, as 'food' is not allowed.
My mum sent me some socks for Christmas, but they're still in a warehouse in Madrid, as after hours of trying to fill in the forms and send the information, I gave up.
It goes on and on... Brexit really seems to have upset the post office!