A Sri Lankan legislator on Friday said he had been offered $2.8 million and a ministerial post by a telephone caller from the opposite camp to switch his support to new Prime Minister Mahinda Rajapaksa in a week-old political crisis.

President Maithripala Sirisena fired Ranil Wickremesinghe as prime minister and named Rajapaksa in a surprise move last week that has drawn criticism from political parties and the international community.

Wickremesinghe called his sacking illegal and demanded a floor test in parliament to show he retains his majority. The session has been set for Wednesday, the speaker of parliament has said.

On Friday, a member of parliament from Wickremesinghe’s party, Palitha Range Bandara, said a caller from the Rajapaksa camp urged him to defect before the parliament session.

“A proxy for Rajapaksa called me today and offered 500 million rupees to support the new Prime Minister and they also offered a cabinet portfolio,” Bandara told Reuters. He did not identify the caller but said he would go to the country’s anti-graft commission with a complaint.

Rajapaksa’s party dismissed the allegation. “We did not offer money to anybody, we don’t have money to offer to anybody,” said one of its legislators, Mahindananda Aluthgamage.

“If someone offered him money he can go to police and lodge a complaint.”

The speaker of parliament in the Indian Ocean island, Karu Jayasuriya, said Sirisena had agreed to call parliament on November 7, following calls for an early session to end the crisis. But the President’s office has not yet issued a formal statement.

Critics say the longer he delays calling the legislature, the more allegations of defections and bribes will emerge.

Wickremesinghe’s United National Party said 118 lawmakers had met the speaker on Friday in a show of their strength in the 225-member parliament.