Carphone Warehouse is a cranky place thats always hit me with their attitude and stubbornness.

If you have send that letter in, the CW CSR will probably write back to you appeasing you not to go court as they lose a lot of credentials, time, money and customers like this and aim to settle it immediately out of court!

The Small Claims Court fees is case dependent: depends on how much your claiming. £300 will be £30 you pay. Additional money lost from you paying a solicitor, for filing the case, travels, missing work, witnesses (and their wasted cash) etc can all be recovered if you win by ordering the losers to pay.