"He insisted that his country [could] tackle the problem by themselves," Mr Samak said in Bangkok after his day trip to Burma.
Fresh storm fears eased on Wednesday as forecasters said a tropical depression off Burma's coast had weakened and was unlikely to brew into a cyclone.
The Joint Typhoon Warning Center in Hawaii downgraded the cyclone risk to "poor".
Meanwhile, the UN accused the generals of beefing up security on checkpoints to keep out foreigners.
John Holmes, the UN's head of humanitarian assistance, says although over 100 international UN aid workers were now in Burma, they were not being allowed into the worst affected area, the Irrawaddy Delta, to distribute aid.
The UN's food agency fears Burma will face food shortages
EU envoy Louis Michel is heading for Burma for a three-day visit, but he said his chances of making any headway with the junta were "slight".
Residents have told the BBC's Burmese service how private citizens have been trying to distribute water and supplies from their own cars - but soldiers have been confiscating the goods.
A BBC correspondent said one devastated village - with one in four of its 400 homes left standing - had received just one bag of rice from the government.
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