so? I assume that the DD's were on a joint a/c, as his would have been frozen shortly after his death? Orange are known to offer PAYG sim cards to people closing account as a way to let you preserve the number, however if they are not activated the contract continues, that may be the case here, and finding them would probalby be difficult if the paperwork is a mess (or they were thrown out). It's also possible that POA was queried / rejected later in the process and the paperwork that said this was never recieved, ignored, or thrown away. Don't get me wrong I'm not saying it's your or your mums fault, it could easily be Orange at fault, but I guess at the time it would be very easy to overlook such details and proving it either way would be very difficult now. There is also the onus on you (or rather your mum) to check and report issues. Why hasn't anyone realised for 18 months the payments were continuing? It would be perfectly understandable if the debit wasn't noticed for a few months, deaths are never easy on anyone, but 18 months is leaving it a long time before querying the debit. If for whatever reason your mum choose to not read or check her bank statements then there is some blame on her part there too. Good Luck, At some point someone will mentioned the Executive Office as a place to try, they may be