What do you mean by “claim was succesful”? Claim by whom? Success by whom?
DCB Legal initiates court proceedings because it knows that many people ignore them, and then it applies for and gets a judgement in default against them.
People who follow the process and file a defence, on the other hand, they eventually give up with. We can’t promise anything, but something like >99% of defended cases get discontinued. It’s not worth their while actually taking it to court, sending people, paying expenses, for a couple of hundred pounds.
But you will need to file a defence in due course.