I have an existing contract (10 years ago) which included a car and mobile phone as part of the package. 99.9% of my mobile usage is work related. Particularly given the current work from home covid situation, plus I am usually on site or on the road. My employer has recently said he doe not want to pay for my mobile and wants to just give me an $800 pay rise. To me this does not cover a typical high usage mobile contract. Plus I do not believe that I should pay for a work mobile that I do not use for personal usage. Can my employer just change the contract if I do not agree? And if he does not provide a mobile then do I have the right to refuse to get a mobile to recieve or make calls and people can then only email me if they want to make contact?