My late mother was resident in a residential dementia care home in Wales from 2011 to her death in 2017. She was self funded. 5 months after her death I received a demand from the care home owner (and that in itself is complicated) for back payment of fees gong back to 2013! We had paid as per their monthly schedule at the start of every month by bank transfer, and complied with fee increases when notified. HOWEVER apparently there was a fee increase in 2013 which we did NOT receive, also did NOT receive 2015, and 2016 was only sent to us in August but demanding a fee increase from April that year. Now I was a regular visitor to the care home, at least 2 times a week, surely they should have noticed the money going in did not tally with their increase and ASK me had we had the notification? They have no proof of posting of letters, in fact it was a wonder anything ever reached me as they never got my address correct, often missing off the name of the property and never ever a correct postcode and often no postcode at all. What legal rights do I have as a self funded relative to fight this, and is there a statute of limitation as to how far back they can "claim"? Any advice would be helpful, I do have a lawyer but want to explore all avenues.