The Indonesian state-run Antara news agency reported on Wednesday that the death toll currently stands at 347.
However, the country’s national disaster agency maintains the figure is still 131 following the earthquakes in the Lombok region.
Antara noted that most people died in Kayangan in the north of Lombok.
Around 165,000 people have been displaced by the disaster, the agency added.
A disaster agency spokesman, Sutopo Purwo Nugroho, stood by their lower figure, claiming the higher numbers reported by Antara and other sources need to be officially verified.
However, the official did acknowledge the death toll is likely to increase.
The Red Cross has struggled to get aid to the worst affected areas, estimating that 20,000 people are still in need of assistance.
Husni Husni from the Red Cross told US network CNN: “We are concerned aid trucks can’t get through because of the debris and there are also landslides happening.
“A lot of people are displaced, and many have migrated to the hilly and mountainous areas because of fear of a tsunami.”
One local woman who lost her mother said: “We lost our houses. We lost our jobs. And the aid is very minimal.”
At least 230 aftershocks are known to have struck the area further hampering rescue efforts.
However, there was a glimmer of hope earlier this week when a ten-month old baby girl was pulled from the wreckage more than two days after the devastating quake.
The child was treated by health workers following her rescue.
Authorities have estimated the damage could amount to a whopping $68million (£53 million.)