What is an effective collection by banks?
A dunning after the overdraft exceeds the prescribed limit or time limit, or a dunning with an interval of at least 30 days between two dunning, is regarded as an effective dunning. Moreover, as an effective bank dunning, unless the cardholder intentionally evades the dunning, the dunning should be carried out in a way that can confirm the cardholder's receipt. Bank dunning can only be classified as an effective bank dunning if it conforms to the relevant provisions or agreements of dunning. The relevant evidential materials provided by the issuing bank shall have the signature of the bank staff and the official seal of the bank.
Generally speaking, effective bank collection mainly includes dunning at intervals of 30 days, ways that cardholders can receive it, and compliance with relevant regulations or agreements. If it is really determined to be a malicious overdraft, the police will probably not send a courier to the door as reported on TV, but send a letter to inform the cardholder that the cardholder needs to handle it himself.