MANGO SERVICE IS AWFUL

I had booked an international flight from Cape Town to Harare with SAA and realised much later that the local flight was operated by Mango to the worst service I've ever experienced. My flight was meant to leave Cape Town at 11 am, we left at 13:00 and I had a 14:50 flight from JHB to Harare. Mango shuttled me from plane to plane and eventually I got to stay in plane which took off. A crew member promised to call ahead for assistance on arrival for connecting with SAA, needless to say no one was there. I asked about my bags and they said they've been sent to Harare already, so went through the boarding gates to try and see if I could catch the flight if it was delayed. Got there and realised I'd missed it. I was then directed to transit to inquire about what happens next, they organised a new boarding pass for a flight leaving at 19:40. Went to SAA baggage people to find out where my bags were, they said they didn't have them, but would retrieve them. That failed so I had to go through customs again back to Mango baggage offices, they took no responsibility for anything and also after trying to explain to them what had happened they still insisted the bag was loaded, only to find out that they'd lost it and now couldn't locate it. By the way no one apologised for anything or cared to inform passengers what was happening. My short 3 day trip to Zimbabwe is now ruined with me having to wait for the luggage to arrive tomorrow if at all