Point my IPV6 address range in Linode and WHM

Hi, I have one cloud server in Linode with one static IP. Further it has one IP4 address and a IPV6 range. Also WHM is installed with 30 license of CPANEL. All cpanel has same IPV4 address assigned. The website running in all 30 cpanel is pointed to this linode via AA for IPV4 and AAAA for IPV6. So the problem coming is that website does not work proper in IPV6 enviroment. So as discussed with Linode they assigned me a IPV6 that has to be configured in Linode. Further same range has to be distributed in WHM. The work has to be done in remote via recorded ZOOM call. Also as told by WHM and CPANEL expert panel team it is a maximum work of 30 min. But i am happy to pay for complete 1 hour. Please only bid if you can do now and also can work in remote. Happy Bidding