It is understood that the reward points of most banks' credit cards have an "expiration date". Moreover, the validity period of reward points for different banks' credit cards also varies.
Even for different types of credit cards from the same bank, some banks have different validity periods depending on the card type.
For example, the validity period of reward points for ordinary cards of the Shanghai Pudong Development (SPD) Bank is 2 years, 4 years for gold cards, and 5 years for platinum cards, all calculated from the account opening date.
As for the Bank of Guangda, the validity period of reward points for all types of credit cards