Is the problem with the bottom cover due to dents, or is it due to the bottom cover bowing? If it is dents, you might be able to remove the bottom cover and repair the dents with some gentle tapping and light hammering. If it is bowing, the problem may be due to a swollen battery. Unfortunately, replacing the battery on the 2015 model is quite a project, but perhaps your company has an extended AppleCare protection plan that would cover a replacement.I have a MacBook Pro 2015 ... If it wasn't for the dents remaining on the bottom case, I wouldn't want to replace the machine. But it can't sit on the desk properly, because the bottom cover is not straight - reminds me of the new iPad Pro, and AppleCare finally expired.