是的 客服的回复: if you will upgrade your card, we will charge you with the new product's annual fee and we will refund part of the annual fee for your previous card based on the date you switched cards.
是的 客服的回复: if you will upgrade your card, we will charge you with the new product's annual fee and we will refund part of the annual fee for your previous card based on the date you switched cards.