拒收廣告fax,應該點做呀?

If you registered UEMO, it will not block your customers' fax.

As it only block the non-authorized advertisement if you have registered the UEMO (Unsolicited Electronic Messages Ordinance). i.e. The electronic messages that you have not agree to receieve.

For detail, you can refer to the official website

http://www.ofta.gov.hk/zh/uem/main.html

Hope this help
Cheers