Bonus points are calculated by transaction Islands refund:
- In some cases, customers are converted bonus from the payment transaction, the purchase of goods, the refund transactions - transactions guest unsuccessful rows are returned the money to the card account so are the number of points KH already converted are subtracted from the account of Customer bonus (bonus points inverted).
- For cases where bonus points are islands, KH will receive a notification via sms (S has registered to receive notifications about account volatility points) about why the rewards are so incurred island refund transactions.
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