Has anyone had any experience of Bremen refusing to honour 2-4-1 Amex vouchers? I'm Portugal based and have a voucher left over I'm trying to redeem during the avios 25% discount sale.

I've done this in the past but got a rather agressive operative insisting that things have changed and basically sent me packing!

Tried the - call back and get someone different routine but got the same guy again!! Happy days!