I've done it. Under the terms that were given to me by company Y, I simply could not accept it. So I accepted the offer from Company X over the phone and they

I've done it. Under the terms that were given to me by company Y, I simply could not accept it. So I accepted the offer from Company X over the phone and they were to send me the paper work. When I called Company Y to let the know, they changed the offer to be more favorable towards me after initially accepting the rejection. The terms were significantly better than Company X. I told Company X about the new situation, and gave them a day to decide what they would want to do. They decided not to match the offer from Company Y. I think company's understand that the talent pool in tech. is highly sought after and sometimes they win and sometimes they lose. After all, this is business, right?