Tools

[flecc]

From your link in post #13

http://www.ebay.co.uk/itm/44PC-Bike-Cycling-Bicycle-Maintenance-Repair-Hand-Wrench-Tool-Kit-Set-Box-Case-/261662063161?hash=item3cec463a39

Under contact details at the bottom of the posting it reveals their VAT No. as

GB 151103860 not GB 151103880 as shown on the shop page.

Thanks Shemozzle, a typo on the shop page and mystery solved, but still it seems suspect.
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[trex]

To start with I intend to buy a set of hex wrenches (L shaped),

You should start with this Y shape hex key:

http://www.amazon.co.uk/Park-Tool-Hex-Wrench-Set/dp/B0009XSP7I

This is the tool I use the most to fix bikes.