After playing with  NZ Netflix and being a bit disappointed about the NZ content  but not having enough time to setup a trial of a VPN service I wanted to wat a movie called The machine, a UK SiFi movie .  The only NZ site that had it was Google Play movies.  I found the movie, Clicked rent HD version  for $799, entered my Google password but then get "Error: Error retrieving information from server. [RPC:S-7:AEC-0]"   tried this on my Nexus 4 and tablet  with the same result.  Did a check on line and find it's a common problem.  Tried all the  suggestions in the Google help forum but no joy. Forum fix suggestion

Anyone else have this problem??   Just to check it wasn't my account  or credit card I bought a 99 cent app with no problem..