Pakatan Harapan will be writing to the Registrar of Societies (ROS) to inquire reasons behind the delay in its registration.

Harapan chairperson Dr Mahathir Mohamad said the coalition has yet to receive feedback over Harapan's registration and its logo.

"We will ask to meet the minister in charge to get information on whether there are any issues in our application and we are ready to make changes.

"We are confident that the home minister (Ahmad Zahid Hamidi) can give us a chance to provide our views and we can listen to the deputy prime minister's view on why our application has yet to be approved," said Mahathir in a press conference after chairing the Harapan presidential council meeting in Kuala Lumpur today.

Harapan had submitted its draft constitution to the ROS on July 24 and its logo on July 28. The coalition immediately received feedback on the logo, with the ROS instructing that they use the full "Pakatan Harapan" instead of just "Harapan".

Pakatan Harapan has since amended its logo and submitted it to the ROS.

On another matter, Mahathir said no application has been received thus far from Persatuan Hindraf Malaysia (PHM) to join Harapan.

It was previously reported that Mahathir had met with PHM chief P Waythamoorthy on a possible collaboration.

Meanwhile, Amanah president Mohamad Sabu confirmed that the party has postponed its national convention scheduled to be held on Sept 15 onwards, following the passing of Sultan of Kedah Sultan Abdul Halim Mua'adzam Shah.

Mohamad said the event has thus been postponed to be held in October. A specific date, however, has yet been set.

"All programmes have been postponed following the Kedah ruler's passing," he said.