Residence reporting - Ban Krut (Prachuab Khirikhan)

Hi! 

Can anyone pls advise on residence reporting procedure in Ban Krut, or Bang Saphan District or Prachuab Khirikhan province? 

I was working in Bangkok until end November and I now live on a retirement extension (issued at Chaeng Wattana) in Ban Krut which is in Prachuab’s amphoe Bang  Saphan. Travelled to the UK over Christmas and New Year and used the Ban Krut address  for the entry / departure form. 

I’m renting a house in a housing development / Resort, but my partner owns a nearby house too.

I plan to renew the retirement extension in Hua Hin (not Chaeng Wattana) this November. What proof of residence docs, if any, do I need to show the Hua Hin Immigration people so they will accept my application then? I don’t want to be sent back to Chaeng Wattana. 

Recently went to local Ban krut police station to register the TM28(?) after my return to Thailand (had never done that before so an unfamiliar with the process). Policeman who deals with resorts and tourists there said I didn’t need to do anything because he monitors the resorts and their visitors. Does this make sense or do I need to insist? 

So, two questions:

1. Do I need to show proof of residence when going to Hua Hin Immigration to renew the retirement extension issued in chaeng Wattana 

2. Does the lack of local TM28 reporting  affect my status? 

Thanks!!!