no , itās means you can come and go as much as you want , just saves you applying for a re entry every time you leave .. if you intend too or maybe leave the LOS on many occasions, then itās worth getting a multi entry
No .. ( well even if they did youād have to go back to the airport the next day anyway to collect it , longer if you did it on a Friday ) but Iāve never heard of airport immigration doing anything like that .