I have an account under email *****@***.com. It has been hacked by sombody calling him...

I have an account under email *****@***.com. It has been hacked by sombody calling himself Esquamo Simpinno. Anybody can work out that this is a hacked Name as Esquamo suggests to clean or to skim and Simpinno stands for SIM PIN No. I cannot get into my account as Id. details have been changed. Furthermore, any attempt at changing my password results in an OTC sent and this does not come to email and neither to my mobile phone. To make things worse, Amazon have disconnected my Kindle and therefore I have lost all my Books (****) and my music purchases. Purchases by the Hacker were being charged to my credit card on the above account. Amazon have recognised this because they have refunded much of that money. When I phone, they tell me to check with my email service provider but he tells me I am not receiving emails from Amazon. My mobile phone does not receive Amazon messages like OTCs. I have opened another account but that won't let me put my mobile number on as that is registered with the first, above, hacked account. It is impossible to get hold of anybody from Amazon as your helplines are extremely unhelpful.