Thailand’s second largest mobile operator dtac kicked off a THB200 million ($5.58 million) re-branding campaign aimed at attracting at least one million new prepaid data customers.

The operator will consolidate all its prepaid users under the dtac brand, dropping the Happy brand, and also launched a number of promotional plans to boost its falling prepaid base. More than 82 per cent of its 25.5 million customers have prepaid plans, according to GSMA Intelligence.

It is offering a daily rate of THB29 ($0.81) for unlimited high-speed internet, with free on-net calls, the Bangkok Post said. Customers can also watch YouTube videos for free from midnight to 8am and stream free music all day. Unused data is rolled over to the next billing period.

Dtac, a subsidiary of Norway’s Telenor, has a 30 per cent market share, trailing market leader AIS with a 46 per cent share. Third place True Move has a 23 per cent share. All three companies have maintained steady market shares over the past 18 months, but dtac has seen its prepaid customer base fall by nearly 3.4 million to 21 million since Q1 2015. Its postpaid base increased 10 per cent to 4.4 million over that period.

Dtac chief executive Lars Norling said 68 per cent of its prepaid customers have a smartphone, with daily data usage increasing 46 per cent year-on-year.

Norling told the Post that it has sufficient spectrum to provide effective wireless broadband service until its 1.8MHz concession with CAT Telecom expires in 2018.