After student visa appeal is allowed

HI! My student visa was rejected in december and had to appeal and my appeal was allowed in february and i received a letter saying that my appeal was allowed in february and ever since i have not heard anyting of them and it has been over 15 weeks. I phoned the ukba phone line and they are no help at all. going through threads i found a few numbers and phoned but they were no good too. So far i am only running in circles without any answers. I even sent letters to sheffield, croydon and leeds asking about my visa but no one has even bothered replying to me. Can anyone help me in giving me a contact number where they will actually do anything please. i heard that there is someone in sheffield who deals with the student visa appeals and does anyone know that number? I am missing my sisters wedding because of the delay in the system.

Did you recieve your call in letter yet?, my lawyer call the home office for me once again and they said am gonna be getting it in 2 weeks time so this firday will make it 2 weeks i just hope it comes as they said, how about yours anything new?