Law firm gets ball rolling on Tyro class action Weâre sorry, this service is currently unavailable. Please try again later. Dismiss Save Normal text size Advertisement The first steps have been taken in a potential class action against Tyro, with law firm Bannister Law starting legal correspondence with the troubled payments technology firm. Bannister Law sent the legal notification to Tyro, the first step in launching a potential class action against the listed company, on behalf of aggrieved customers. Tyro chief executive Robbie Cooke. Credit:Peter Braig Tyro is the largest provider of eftpos terminals outside the big four banks and the fintech was valued at $1.4 billion when it debuted on the Australian Securities Exchange in 2019.