I had that issue with my 2015 12" MacBook Retina. I ended up buying a broken keyboard from eBay for $80 and picked the keys off that I wanted, then re-sold it

I had that issue with my 2015 12" MacBook Retina. I ended up buying a broken keyboard from eBay for $80 and picked the keys off that I wanted, then re-sold it on eBay for $60. (this was before they announced the keyboard replacement program)