幫Iberia澄清一下
基本上按照原始條款 你轉走然後沒補回來的話一定會變負的 (如果原始哩程<bonus)
"The extra promotional Avios not redeemed by 1 December 2018 will be withdrawn
from the customer's account. The redemption terms and conditions are subject
to the general terms and conditions of the Iberia Plus programme."
然後按照Iberia Plus的 一般條款
在哩程數過期的那邊有特別寫到"Forthese purposes, Avios transfers carried out
between the programmes BA Executive Club, the Avios Programme (in the UK), the
Iberia Plus Programme and any other programme which may use Avios as currency
are not considered movements as they do not involve collection or redemption.
Transfers between Iberia Plus members are also not considered movements."
所以除非你在12月前在IB "redeemed" 你賺的bonus哩程數 否則就會變負的
那在那之前去轉來轉去 他可不可以封號就看你怎麼跟IB/BA說
而負的哩程數會怎樣 也是未知數
(可能賠錢? 類似信用卡 1 avios = 0.01 EUR or 封號)
另外別忘了IB跟BA都是IAG集團所以一起封號倒也不是這麼驚訝的事情