By Foo Yun Chee BRUSSELS (Reuters) -Privacy activist Max Schrems’ advocacy group Noyb on Thursday expanded its complaint about Meta Platforms’ paid no-ads subscription service as it urged Austrian authorities to investigate the difficulty users face in seeking to avoid being tracked. In November, Noyb had told the Austrian Data Protection Authority that Meta’s no-ads subscription service launched in Europe was equivalent to having to pay to ensure privacy. Meta has said the service that applies to Facebook and Instagram aims to comply with EU rules that users must be given a choice whether the…