Originally Posted by
uhoo
If they were innocent why would they not be trying harder to protect their reputation by fighting BA for wiping out $100,000 worth of their clients’ Avios?
This. If I were a reputable TA, I would immediately try everything in my power to handle this with BA themselves. The fact that this TA is not doing so, and instead is making excuses, speaks volumes. OP should be asking the TA what exactly did the TA do - every single detail.