Chosen Solution

So I purchased a new macbook pro in late 2018. At the time 16gb of ram was plenty but I have begun to use Adobe CC pretty heavily for web development. Needless to say I have run into memory issues. I know that I cannot upgrade my own, but does anyone know or have experience trying to replace the mobo through apple? I want to bump up to 32gb and would rather not drop another $3k

Apple doesn’t provide upgrade swaps after sale.