My questions is about claiming a refund from a failed ICO. The ICO in question is WaterTech and the token is WATR
I assume they organized an ICO and the minimum limit was not reached? In any case, if the contract doesn't include any refund options (automatically or manually) then your only option is to contact the organizers.
Or if you mean that the ICO was an exit scam there's very little you can do. Of course you can always try to contact them.