Appauling customer service

On Thursday 24th September I took my phone to WeFix Clearwater Mall for screen repair for the 3rd time in a space of 1 year. My last encounter the manager advised that there was a problem with the screens for IPhone X and he would call me once the right screen was ordered. To date I had nobody had made contact with me until I went to the store myself as now my phone screen was faulty and blank. When I took it in he advised me that I should've come sooner even though I 1. was awaiting their call and 2. we had national lockdown since March 2020. I was advised to leave my phone with them and they would book it in on Saturday 26 September 2020 and call me with feedback. Again I was not contacted as advised of which I then went back to the store yesterday 27 September 2020 where I was advised that an email was sent to their head office and before they can do anything they are awaiting their feedback. To my surprise same day later in the afternoon I received a call from Lloyd the store manager to advise me that my phone has a crack that cannot be seen by the naked eye and was missed by their technician therefore they cannot fix my phone. This morning 28 September 2020 I went back to question this and reiterate what I told him over the phone yesterday which is that the phone has never fallen and therefore cannot have a crack. Also questioning how is it possible that when I dropped off the phone 4 days ago there was nothing , the lady that took it in saw nothing and the apparent technician that was apparently checking it saw nothing. I still maintain this phone did not fall , does not have a crack and just needs a new screen which I was promised from last year and still have not received. Moreover after advising that I am not happy Lloyd said I should call headoffice but he gave me the incorrect telephone numbers (twice). The level of unprofessionalism is appalling and I am very unhappy with the level of service received from this store but moreover from this manager who has given me the run around and excuse after excuse instead of attempting to assist a customer.