More damaged phone

Never had such bad experience with cellc.Sent my LG G6 in to have the back glass cover to be repaired. Was told that it shouldn't be a problem to be have it repaired. Only to found out that I must pay for the repairs. So I declined. Phone was sent back to the store, I never got a call to say it was there and when I went there, they didn't know it was mine. Before I left the saw I had a look at the cover - and it was even more damaged than before. So mush for the assessment. Now I am sitting with a badly damaged phone and no back cover as your store doesn't have. Ordered a cover on day of purchase of LG, was told they have it, just needs to be captured on the system. Three months later - still no cover and a phone that your repair/assessment guys damaged more. I feel that me phone gets replaced. If I send it back to repairs - I just might get something else that's faulty with it. NOT HAPPY !!!!!!!! Been with Cell C For a Long time, and this is the type of service I get. Very disappointed.