First make sure you know what service you wish to order or APP you are using ? If not sure what service to purchase you can open support tickect here : https://ipstreamers.freshservice.com/support/home#tickets/new/tick . If your still not sure you can ask for assistance or purchase a trial.
Mac number service use Mac number : 00:1A:79:XX:XX:XX One device only when using mac number
you can order on this link: https://iptvstreamers4less.com/product-category/mag-boxes-stb-app-services/
Xrream Code Service use: M3U Playlest | Username and Password and URL Multi devices option
you can order on this link: https://iptvstreamers4less.com/product-category/m3u-servers/
APP Service use only Server provider app only : Multi devices option
you can order on this link: https://iptvstreamers4less.com/product-category/app-servers/