If the adjustments are disability related, the organisation can refuse to implement them if they cannot support them operationally:
For example, your role involves face to face customer support and colleagues have to pick up the slack.
You wfh means colleagues have to work more from the office to maintain ratios.
Extra budget is required to cover some of your duties when you are not in the office.
Your absence means you cannot attend on site meetings and others have to take time from their working day to brief you.
Further, what does your contract stipulate about your principal place of work?
You haven't said what your disability is, whether you are receiving optimal treatment or whether it is travelling that krevents you getting to the office. If it's travel, consider an access to work application - they can help with taxi costs.
If you can do all of your job from home, with a computer, chair and screen, etc., what is it that prevents yiunfrom doing your job at work?