I panicked I guess. Any idea of a way forward please.

Hi Could i have some advice please. I registered with Noddle to check out my financial history, on doing so it notified a host of people that i apparently owed money to. A couple i knew about and they were on my financial history account so arranged to pay them off. I then received a CCJ from BW Legal - it was an account on my financial history so agreed to pay it, although i disputed the fact that i never received a default notice etc. Then the letters from Lowells started. Debts i know i didnt have. I have asked for proof of the debts - which i;ve been waiting weeks for and havent received them. I did receive a letter today from a service customs relations officer from Lowells stating that they are still waiting for information regarding my queries and complaints. help please.....