A quick copy / paste from the Philips site
http://www.philips.co.uk/About/company/Section-13655/Index.html labelled "Customer Care in the UK"
* Warranty Service
If you are experiencing problems with a new Philips product in warranty, it is essential that your initial contact for remedy is with the retailer from whom you purchased the product.
* Out of Warranty Service and Product Support
We recommend that in the first instance, you contact the retailer from whom you purchased the product. Alternatively you can contact our Customer Help Desk:
telephone number 0906 1010 016
calls are charged at £0.15 per minute
* To locate your nearest service/repair agent, then please use:
telephone number 0115 912 5261
For support related to the following products:
* PC Monitors
* Projectors (beamers)
* PC products: CD/DVD drives, webcams, soundcards, speakers
* Streamium audio and PCTV products
* Wireless IP / Internet networking products
telephone number: 020 7949 0069
For support related to the following products:
* Universal remote controls bought as a separate product
* Pronto and iPronto
telephone: 020 7744 0344