Upset with Norman Bissett

I am constantly harrassed all hours of the day, by Norman Bisset after I have told them that I am under debt review given them the name of the debt counselling company and the name and surname of my debt counsellor, and that my debt counsellor has made arrangements with Wonga, my debt with Wonga is close to being paid in full but the amount that norman bissett quoted and the amount according to my debt review differs considerably, dont they communicate with their clients, I will be sending their details to my debt counsellor, why cant they just contact the person with the information I gave them surely they know how to use google to get the contact details of the company.