The Qatari Islamic affairs ministry, in a statement published by the official QNA news agency on Sunday, said Saudi Arabia had "refused to communicate regarding securing the pilgrims safety and facilitating their Haj".
Saudi Foreign Minister Adel bin Ahmed Al Jubeir deemed today Qatar's request to internationalize the holy places as an aggression and declaring a war against Saudi Arabia.
Qatari Foreign Minister Sheikh Mohammed bin Abdulrahman al-Thani said these were just stubborn and illegal policies from the countries that had imposed the economic blockade on it.
"We are exhausted of responding to false information and stories invented from nothing", he told Al Jazeera TV later on Sunday.
At the meeting in Manama, the foreign ministers discussed the latest developments in the Qatari crisis, including regional and worldwide discussions on the issue.
The quartet added negotiations are possible if Qatar shows "real intention" to stop supporting terrorism and interfering in neighbouring countries.
As part of the boycott, the four countries also expelled Qatari expatriates.
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Qatar said later in June that the hack had originated in the countries waging the diplomatic war on Doha. Earlier this month, the Washington Post, citing USA intelligence officials, reported that the UAE may have been behind the hack.
"We reject attempts by Qatar to politicize the issue and consider it disrespect to the Hajj and pilgrims".
Saudi Arabia and Qatar have engaged in another public quarrel over suggestions that the Holy sites in Mecca and Medina be open for global control. Before entering into new commitments, Qatar should ask itself: "Are we willing to commit, or will we dishonour our commitments again?" he added.
The 13 demands include shutting down the news channel al Jazeera, cutting relations with Iran and closing a Turkish military base in the country.
"These demands are not negotiable". He did not explain in what areas the four countries would be "ready for dialog" then.