What can I do? 

I made a claim in a AX700 I bought from Curry’s 16/05/19. 

I sent jpeg of serial number and pdf of the receipt from Curry’s. 

you would think the receipt would be proof of ownership but not according to Sony. 

Received an email 3 days ag requesting a copy of invoice and giving 10 days to respond. 

Contacted Currys same day. Have forwarded copies of invoice 3 times but had no response. 

Now 6 days to go and no further forward despite respectful requests they at least acknowledge my emails. Nothing. What to do next?