I have two contract ...

I have two contract phones with them I just got the blackview phone but it was faulty the memory card kept deleting my data so they said I should send it for repairs,and I sent my phone with all it's accessories,the charger , earphones and the memory card but when it was returned it did not have any of the accessories and when I queried it I was confronted by a rude lady who said she's the manager of the repair department and she made me feel like a fool as if I'd say I sent accessories knowing I didn't,I was very upset and till today no one has called me with any explanation