Booking.com complaint: The accommodation cancelled our booking without our agreement – still no refund

Book ref 3369333849 pin 7252
We booked this accommodation and paid in full. A few days before our holiday was due to start, my husband became ill so I messaged the owner to ask for change of dates. They messaged back to say this was not possible.
On 2422 my husband had shown no signs of improvement so I phoned the property and left a message on their voicemail explaining the situation and that we were hoping to change our arrival date to 5422 and that I would this. I then re-scheduled our ferry for 5422.
On 4422 my husband was feeling better so I messaged the property to our arrival time. I was completely shocked to receive a message back to say that ‘This was not possible’. I phoned over and over but each time it went to voicemail.
I phoned booking.com and spoke to ‘Rick’. He told me to hold whilst he phoned them.
He came back saying that he had spoken to the property and all I needed to do was to phone them now to reinstate the booking as it had been cancelled from their end.
I phoned over and over, leaving messages and to this day, no-one has phoned me back or made an attempt to contact me.
I looked on booking.com on 4422 and the property had already been let to someone else.
We are absolutely devastated.
When we booked, on booking.com it said that the property would text me on the day of arrival to give me details on check in. IF they never received my voicemail stating that we would have to delay our arrival, why did I never receive this text? Someone listened to that message and knew we were arriving later. I can only assume this wasn’t passed on to the appropriate person (manager).
If however the owners English is so basic that they could not understand my message, then this MUST be stated on booking.com. It needs to say that the number can be used by French speaking visitors only.
Also, if we simply just didn’t turn up (which wasn’t the case anyway), why didn’t they phone me? Or text? Or email? They had all our contact details!
Not only have we lost our holiday but the financial cost has been huge. Accomodation, travel including extra costs to reschedule, AA cover for Europe, Comprhensive car insurance for Europe, Travel insurance, House sitter for our pets, time off work (as I am self employed), new holiday clothes for the family…the list goes on.
I have a devastated daughter who had all her bags packed ready to go. Many tears have been shed in this house.
At the very least, we expect a full refund from the property. At least we can put this in our holiday pot and start saving again.
It doesn’t make up for the money lost or for the sadness this has caused but it’s a start.
I look forward to hearing from you.