bad service

On 11January i have taken in my tablet for repairs , i was told it would take 7 days i returnes to the store after then a consultant told me no it takes 14 days i again returned then im told no it takes 4 weeks. I again called the store manager end of february she said i should send her a text with info and will contact me back im still waiting on that call. I went back into the store and brian a consultant helped me and called the warrenty department which said my claim was approved long time ago and i was not even contact or informed. Now im again waiting because there is no stock i waites 2 months to hear i should get a new device and now a no stock excuse. This is pathetic i pay for something i have no benefit of due to poor service they are quick to give a service when it benefit them but when problems arise they take their time. Im highly unhappy and would like my device back now.