I checked Surf n Share, was so happy when I read it but seems like it was an old plan in 2013 then got sad

Then I found this thread saying there is a multi SIM service and became happy again

Just to read that it was discontinued mid this year and now sad again lol.

Anyway I don't see a difference between Postpaid Share 48 and a supplementary line under principal line? Looks exactly the same?