I've been working from home for two years and had no complaints. My LM asked me to come back to the office so I put in a Flexible working request. I was given a two week trial which was very successful, at the end of the two weeks i asked for an update and was told they need more time to consider the request and they technically have 3 months to decide and until they did the trial would be ongoing, after this point I stopped getting any work, stopped getting calls, my colleagues, working from the office, were doing my jobs. When I asked for work I was told there was none and then ultimately 3 days before the 3 month deadline it was refused. Is it worth taking things further as they'd obviously set me up to fail? Thank you in advance.