Why is there mysteriously no longer signal in my house after T-Moblile/Sprint Merger?

So, it looks like we are having the same issues as everyone else. T-Mobile bought Sprint and now we have 0, 1, or 2 bars in our own homes where we previously had 4 bars so service is slow and crappy. Very disappointing. Had Sprint for years and don't really want to switch but since these comments started over a year ago without being resolved it doesn't appear anyone cares? Shouldn't they have looked to see if the towers from Sprint were being used before shutting them down. Seems sad that employees are even recommending switching to Verizon. Is there an end in sight? An actual date? Please respond!