One can appeal against a county court judgment (CCJ) in the small claims court only if the court made an error in a legal sense or there was a serious irregularity in the court proceedings.
To appeal, one must file a notice of appeal within 21 days. A fee is payable although this could be waived in cases of financial hardship.
If you want to appeal against a decision in the small claims track, you should consult a solicitor or an experienced adviser for example, at a Citizens Advice Bureau. To search for details of your nearest CAB, including those that can give advice by email