Bad service

My phone was handed in to Finrite for the first time in April. First incident was that the phone was kept in storage for 4 weeks because Finrite didn't have details on what happened to the phone , but no one bothered to call and ask . The phone went in for a faulty repair as it is under the 3 month repair warranty , the phone was returned as is after Finrite insisted there is nothing wrong with it . Now the phone is in for the 3rd time , when i did a follow up yesterday i was told the they hadn't received the phone yet , when we did inquiry with the store i handed it into , they actual found out that they received the phone and they still can'y find the problem . This is after i repeatedly told the guys that the only way they will detect the problem is if someone uses it's full functionality as a daily fine because the screen reacts to hours of pressure , then that's only when it starts to change screens without being touched . The supervisor yesterday said she will use the phone from today . I will wait on the response but i have a feeling she's going to tell me there