amjid1709 wrote on Sep 3
rd, 2007 at 6:53pm:
in the booklet it states the insurance is with DSG Retail ltd registered office  maylands avenue, hemel hempstead Hertfordshire HP2 7TG but it is currys themselves who provide the insurance they are based in PO BOX 1686 Sheffield S2 5YB 
Have they replaced Mastercare with "Whatever Happens" ??
A thread for Mastercare is 
here.
There is a DSG office facing the Sheffield Parkway, so it's probably there that calls and mail go. Google Maps shows it 
here. Judging by the map, its address is Bernard Road.
More information on the building from GVA Grimley in a leaflet 
here.
A search on 192.com Business Search for businesses in Bernard Road, Sheffield reveals quite a few entries there, all of which have the post code S2 5BQ.