Malaysian authorities have broken up an illegal online gambling operation that bombarded potential customers with come-hither text messages.

On Wednesday, the Sun Daily reported that police in Malaysia’s capital Kuala Lumpur had arrested five individuals in connection with an illegal online casino that authorities claim was making profits of RM3.3m (US$794k) per month. The raid followed a tipoff from the public, presumably a disgruntled customer.

Kuala Lumpur police chief Commissioner Datuk Seri Mazlan Lazim told local media that the operators of this gambling ring employed a GSM SMS blasting device to send “hundreds of thousands” of text messages promoting the online casino to random phone numbers in Malaysia and China.

The Commissioner said the ring had been in operation for about a year, working out of an apartment that served as their ‘customer service department.’ The suspects were responsible for instructing customers who responded to the text messages on the details of opening an account and depositing cash.