https://support.xilinx.com/s/question/0D54U00008ahRgoSAE/lh-what-is-the-24hour-rule-for-lufthansa-247-customer-support?language=en_US

https://support.xilinx.com/s/question/0D54U00008ahRgoSAE/lh-what-is-the-24hour-rule-for-lufthansa-247-customer-support?language=en_US

https://support.xilinx.com/s/question/0D54U00008ahRgoSAE/lh-what-is-the-24hour-rule-for-lufthansa-247-customer-support?language=en_US