By Josie Clarke, PA Consumer Affairs Correspondent & Lawrence Matheson Aldi’s brand battles are adding up as its customer base continues to grow. The German discount supermarket has been in a long-running dispute with Marks & Spencer over light-up gin bottles, which is just the latest in a series of court cases Aldi has faced against its brand rivals. Aldi recently lost its appeal against a High Court ruling that found it had copied the design of Marks & Spencer’s light-up Christmas gin bottles. This came just weeks after the High Court dismissed a trademark infringement claim against Aldi by …