My employer seems to be changing my working conditions without consultation with me. We are being told to make up time taken for medical appointments and not have tea breaks. My contract is just a sheet of paper saying the hours I should work and little else. I have worked for the company for 35 years and things have changed over that time, but gradually!
employers are perfectly within their rights to ask you to make up time, or take unpaid leave for medical appointments, there is no obligation for them to let you have paid time off, therefore this is NOT a change in your contract, perhaps just the employers making it clear
If it has been going on for a long time that you've been benefitting from this, you could try arguing it has become an 'implied term of your contract'. But I wouldn't fancy your chances of a raise come next appraisal-round. Im afraid competing in a global market these days really does require some give-and-take on both sides. If it seems like all 'give' and no 'take', I sympathise.