Pip stopped after review originally scoring 15 points,.

Hi all, my pip was stopped last September after review I was receiving enhanced care, failed MR still scoring 0 points! Appllied for tribunal,sent further evidence,  recieved all the paper work,in it was a report written by a case manager stating  that she had reviewed all the available evidence including new evidence and states that my points should be reinstated, they tried to contact me to ask if I would accept but had a old number for me. So tribunal was to go ahead because activity 12 was also in dispute, wrote to tribunal and withdrew appeal saying that I no longer wish to disput activity 12 and that I accept the DWPs decision but now not able to get any answers from the DWP regarding this and only have one week left  to reinstate tribunal, but it seems pointless doing this as the letter states that I was entitled to the 15 points originally scored! This award also ended on the 1st of June 2017 and I am in the process of claiming again. Tia for any advice. Joolz