Poor service quality/product knowledge,,untrained

On july 14 - 15 i made use of the services of the brand new ifix branch in tygervalley for a battery replacement (everything else was working perfectly) I experienced poor service from staff who seemed as though they had no training. After an hour and a half (it was supposed to take an hour) i returned to find my phone had lcd problems, then had to go back to the technician to fix, then came out again to find the phone could not obtain signal. The technician said that there had been damage done at my previous repairs. WICH WAS DONE AT THE V&A WATERFRONT IFIX (screen repair), note that they could not even fit the glass protective cover correcltly at this branch. So i returned the following day after lunch time to find that my phone was still not ready and seemed to be rushed to \fix"when i arrived to the store. I have a new battery now"