Who called from 2130001

There´s this number trying to call me on 25/07/2008, I didn´t do anything, so on 26/07/2008 they tried it again from the number +442081180048 (this number is mentioned here). I´m from Prague.

I know who is this.. Its a service provider from China, who is registered in UK.

I get texts from this number, it's a job alert from Office Angels recruitment agency.