I have a tenure related question. My company offers attractive healthcare and stock option benefits to employers with 25 years tenure or above. Benefits include a reduced employee cost to maintain healthcare after retirement and instant vesting on stock o

I think was concise above but would add that I work for a Fortune 500 I have a tenure related question. My company offers attractive healthcare and stock option benefits to employers with 25 years tenure or above. Benefits include a reduced employee cost to maintain healthcare after retirement and instant vesting on stock options instead of having to wait 3 years to vest. I spent ten years with this company and then left on my own for 20 months. I returned to the company and have been back for 18 years. The company recognizes my tenure at 18 years. I have continually sought to have my tenured “bridged” to no avail. The company will bridge tenure if the gap in employment is one year or less. Do I have any rights to contest their interpretation of my tenure? Or do they have the discretion to document tenure as they see fit? Thanks for the help.