Mango airline staff *****ing from customers luggage

Flow on friday 21.09.2018 to JHb,when i got to my destination i found my bag was opened and some property of mine was ******.

Then on Monday i flow back from JHB to CT and the seal on my bag was broken and clothing moved around,as they could not find anything to ***** because they stole it on Friday 21.09.2018 already and i kept what was not ****** as carry on . I reported this to Mango and all i got was a default reply. Basically saying sorry they do not tolerate such behavior,but its my fault i did not insure my belonging.