BANGKOK (REUTERS) - Thailand's anti-monopoly watchdog warned food delivery platforms on Wednesday (April 1) they could face fines for charging higher commissions as online food orders surge amid the coronavirus outbreak.

The announcement comes after malls and restaurants were ordered to close except for take-out orders in late March. Food delivery platforms have seen a spike in orders, with operators like Foodpanda seeing orders rise 20 times from a year ago.

Thailand has reported 1,771 confirmed cases and 12 deaths.

There have been complaints that food delivery platforms have increased their service fees for restaurants from 20 per cent to rates of up to 40 per cent, the Office of Trade and Competition Commission (OTCC) secretary-general Somsak Kiatchailak said, without naming any companies.

Platforms are also charging restaurants fees for marketing and advertising, he said.

Unfair commercial activity that causes damage to consumers will face a penalty of 10 per cent of the year's revenue, the OTCC said.

Grab said on Wednesday it was cutting its maximum food delivery commission from 35 per cent to 30 per cent to reduce the financial burden for its partners.

"We are taking another step to provide greater support to alleviate the impact of Covid-19 on our community," head of Grab Thailand, Tarin Thaniyavarn, said in a statement.

Rival food delivery app Line Man, owned by Japanese chat app Line, has always charged between 20 per cent and 30 per cent for restaurants which opted into the platform's promotional programme with a discounted delivery fee, its head of business development and marketing, Mr Waranan Chuangcham, told Reuters.

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Restaurants can also use Line Man without commission, where customers pay the regular delivery fee, she said.

Foodpanda, which has seen order increases of up to 30 per cent each week in Bangkok, said it has kept commission at 30 per cent. Foodpanda Thailand CEO Alexander Felde said it was rolling out a package worth 35 million baht (S$1.5 million) to support riders and restaurants.

The package includes insurance, masks, sanitiser kits for its riders and also free delivery and vouchers for restaurants, Mr Felde said, adding that the firm was recruiting 5,000 riders each week to keep up with demand.

GET, the Thai unit of Indonesian ride-hailing start-up Go-Jek, did not respond to a Reuters request for comment.