Issue activating Apple Pay cash on iPhone X

Not sure if anyone already discussed this issue I couldn’t find a thread. I had backed up by 6s on iCloud and gave away my phone before iphoneX arrived. Both running 11.3 beta. I can’t setup Apple Pay cash or key chain as it keep asking to approve from other iOS device. I have removed my 6s from devices as well. Have spent few hours with Apple support but still can’t resolve the issue. Any help is appreciated. Thanks in advance