WeFix or WeDamage ???

Good day My experience at weFix has been the worst ever. On the Monday,January 15 I took my phone (iPhone 6s white) to wefix in menlyn mall to get fixed. I explained to my understanding , the problems that my phone was giving me (I suspect that my phone had battery problems because it went of and doesn’t switch on anymore) so I explained the problem to the receptionist that was there on that particular day , I was allocated a job number and she told me that they would analyse the phone to see what the actual problem is .They would email me the quotation within 24 to 48 hours. I approved the quotation immediately after I received it. (I truly believe that it does not take long to change a battery ). Wednesday ,January 17 I called wefix to find out why they haven’t gotten back to me , the receptionist said that they had no batteries in store and they would have it by Friday ,19th of January. On the 19th I did not receive any call SMS or email from them therefore I called and they told me a long story about them not receiving the battery yet which they didn’t bother communicating . Each time I call wefix to get an update they take their precious time to pick up their phone or they won’t at all creating so much frustration and inconvenience for me as the customer. Eventually I called on the following week to get a final update and to cancel the whole process hence receptionist convinced me to leave it and told me the technician had changed the battery but my phone still would not go on therefore they would throughly analyze to see what the problem is and once again they promised to contact me back which they never did (something they should have done in the beginning as professionals) A week after, I eventually decided to collect my fone from the store ,the way the customer service is so terrible the receptionist who assisted me requested my job number went to the back room and never excused her self she took almost 30 minutes looking for my phone (which once again she couldn’t even excuse herself or explain why she was taking so long to my phone) .She later came saying she couldn’t find my phone and that they would get back to me once they would call to deliver the phone to me. Later that day I received a email from wefix saying that I should COLLECT (basically she **** about it being delivered ) and my phone is beyond economical repair meaning that instead of the technicians fixing my phone they just destroyed my phone and they have the nerve to tell me that they will attach a letter so that I can fix it at iPhone store. I am very unsatisfied with they customer service they are not polite they don’t communicate and now I’m expected to get a new phone which I don’t think it’s fair at all because I took it there trusting that they would fix it but yet if they analyzed the phone in the beginning why couldn’t they tell me my phones problem was beyond repair and not wasting my time. I had to wait 3 weeks to get back a damaged phone . I demand that we fix finds a better solution for my phone or either put my fone back to the fixable state in which I gave them and for the company ASAP. Regards