Public Liability insurance protects the member for allegations /claim made against you arising from allegations of negligent loss/accidental bodily injury to third parties or accidental damage to third party property whilst delivering/teaching Alexander Technique.
The Professional Indemnity insurance can consider Claims involving loss (financial or otherwise) that arises out of Errors and Omissions (eg bad advice or failure to act).
The cover provided is subject to the policy Limits of Indemnity, terms conditions and exclusions as summarised on your members summary of cover and detailed in full in the policy schedule and wording.