First, the status of the card is abnormal, such as card degaussing, chip damage, too many password input errors and being locked, etc. It is recommended that the landlord call his home service hotline to confirm.

Second, there is nothing wrong with the card. If the signal of POS machine is not good, the off-line transaction will fail.

Third, the number of places is insufficient.

If the landlord has other questions, you can ask.