Disgruntled, Disappointing & Dissatisfied Service

Had my gearbox taken out 4 times within the last 3 months and I still have the same issues. I feel as is my repairs were only trail and error. You want to remove my gearbox for the 5th time now and do further assessments, I am not happy with this because clearly there is an issue with the gearbox since internal parts where replaced. I want a brand new gearbox as I can't keep going through this back and forth. You have failed me as a dealership. I hate the fact that the level of communication within your dealership is very poor. I am given different feedback, from different people and this is not the first time. I just want this nightmare to be over. You are so friendly and accommodating when you wanted my business. I do not dispute the fact that you have assisted me each time that I laid a complaint but this does not change the fact that I am back at square one.