About study permit

[Umer##1234]

Hi I want some information can some one help me to know that what is AXL550 on my study permits under the REMARKS/ OBSERVTION.
I do not know what is this AXL550 I am also allowed to work part time according to my study permits. and I am still working please help me what is this?

 

[Bago45]

Did you find out what it means