European Union member states have strongly advised Iran to follow JCPOA, which if not followed, will be catastrophic for Iran.
According to the reports of Baaghitv, three European states Britain, France and Germany has strongly recommended Iran to follow JCPOA (Joint Comprehensive Plan Of Action) signed in 2015. A formal letters have been sent in this regard according to diplomats.
It has been recommended, if Iran does not follow JCPOA, Iran will have to face dire consequences. US President pulled US out of multilateral treaty in May, 2018 and has imposed sanctions on Iran which is considered as economic strangulation tactics by Iran. Iran has threatened to withdraw from that treaty if European Countries does not take any step in this regard. Iran has announced July 2019 as deadline for keeping this treaty intact otherwise Iran will increase its Uranium stockpile.