dell support in thailand

my Inspiron 5547 back cover is broken after end of warranted time.
i contract to dell support in thailand.
but i cannot buy / get service
because
- they cannot open sell part / service without Service Tag or Express Service Code
- they cannot open sell part / service for out of warranted device in Saturday or sunday
- they not have store of store that have part
- him think no part store for replace
- him tell no my notebook informational no detail of warranted but i can open your website and get more detailed

Inspiron 5547
Service Tag: 

Express Service Code: 

Ship date: October 02, 2014 Country: Thailand Print
Service Start date (GMT time zone) End date (GMT time zone)
STANDARD TECHNICAL PHONE SUPPORT October 02, 2014 October 03, 2015
POW (Parts Only Warranty) October 03, 2015 January 04, 2016
NBD (Next Business Day on-site) October 03, 2015 January 04, 2016
COMPLETECOVER COVERAGE PROGRAMME October 03, 2015 January 04, 2016
ProSupport for IT Tech January 04, 2015 January 04, 2016


i unknown why dell thailand is working on bad process. in my experience from other brand. dell thailand make very bad thinking to your brand.