Sales notifications

I can still login without problems but I am not receiving sales notifications or adverts.

SO IT SEEMS IT IS JUST THE SALES NOTIFICATIONS AND THE RETAIL ADVERT EMAILS THAT ARE NOT BEING SENT.

Also the notification preferences link takes me to a page that has "Internal Error We’re sorry, but we encountered an error while processing your request.

I have cleared caches. Changed Browsers. Cleared cookies. cleared Browser History. Tried on a separate desktop and on an iPad, but still no joy

Been trying to get this resolved for the last 13 days but hardly any of the Amazon staff understand the problem. Those that do say they will pass my request on to another dept, but even they are no use in restoring my email notification when a sale is made