Bad Client Service experience

I've been trying to remove a judgement under my name that was paid up in 2016 and have experienced a very bad service. Since 17 October 2018 I ve sent e-mails randomly and have also faxed the letter, tried to do the follow up since then with no luck they hardly pick up their phones, firstly they said email I sent to was incorrect and gave me the right one and they said I will receive the sms confirming that the email has been received, I sent the e-mail but still didnt get any feedback, I kept on trying to call and find out if they have recieved it or not they dont answer calls until the other day I was able to go through and they said they wont be able 2 assist me because my e-mail is still in the queue I must wait, I kept on trying for more than two weeks there was no luck of going through up until I used ********** and selected option 2 which is the option for Business they answered immediately and they forwarded my call to the consumer section and again I was told to wait, I kept on trying sand its only this morning that I was told I sent the letter with the wrong case number, I was advised to call the lawyers for a new letter because the case numbers dont match. I called Maravedi Credit Solutions and they said the case number that the experian agent is reffering to is for the administration order however they again send the letter with that case number that they said they needed. After that I tried calling since 11:00 and only at 14:25 I was able to be assisted by someone who kept on asking who told me the case number is wrong? What was the name of the person I spoke to? As if there was nothing wrong with the case number but she told me to wait and after that she said what I sent is not a paid up letter, I had to call Maravedi Credit Solutions (Lawyers) again and they said that the paid up letter they use for everyone and they also sent for the judgement to be removed on the 31st of October 2018 and again I tried calling them from 14:33 until 16:00 there was no response. I am not sure what to do now.