I purchased Studio One 3.5 Professional on May 17, 2018, but on May 22
Studio One 4 Professional was released. I entered the serial number on my
account on May 23, and the Studio One 3.5 Professional version was
registered. It is too unfair and costly to upgrade to just five days
difference. So, I would really appreciate if you would upgrade my Studio One
3.5 Professional software to Studio One 4 Professional.