Apologies I was not able to check out the info until today and you have got there before me..
The number you have identified is on the AXA website here:
http://www.axainsurance.com/travel/claims/This was the number that I was talking about...
With regards to Southdowns Insurance, they DO have a geographical number they are just NOT willing to give it out.
Hopefully ALL insurance firms, including "brokers" will be obliged to switch to either geographic or geographically charged numbers in the future.