The Sony VaioLink helpline can be reached by selecting appropriate options on 0330 440 2060 (Sony Customer Information Centre). Presently, it is option 2 (Vaio products) followed by option 2 (help with your Vaio).
This gets through to the same menu as on 0870 240 2408, 0870 240 2410 and +353 1 407 3040.
I've removed two verified entries and post them here for the record:
Sony IS Storage 0870 240 2410 020 7365 7871 Technical support/warranty line for all SES products excluding tape, backup appliance, file server & StorStation
Sony IS Storage 0870 240 2410 020 7365 7870 Technical support/warranty claims for all tape, backup appliance, file server & StorStation
They have the VaioLink 0870 number and as we have a direct alternative for it (through to the same menu), I have removed these. I am unsure as to whether there is a Sony IS Storage 08 number that these alternatives might work for.