DebtBusters poor service

I've accepted debtbusters service to assist me clear my debts without proper investigation as their offer sounded convincing, but I requested them to put my request on hold as I need to first discuss with the banks I owe to see if we cannot settle the loans and they agreed. I then contacted the banks and they gave me good affordable offers to settle the debts. I then contacted debt busters and told them, I decided to withdraw the application.

They asked for the reason and I explained to them that I made arrangements with the banks for settlements. They then gave me a reference number and asked me to send an email following the telephonic conversation which I did, but when they called me they wanted me to approve the debit order which I refused, telling them I'm no longer in need of their service and I have already requested for cancellations.They said they will follow up and get back to me.. I then consulted my employer to assist me with the loan to pay off the debts and they couldn't because I am already listed on debt review. Since then I have been trying to get hold of them, I call them every day and finally when I do speak to someone, they promise to contact me back but what they actually do, they dial my number to ring once and hang up, probably to come with an excuse that I'm not answering my phone. I regret ever giving them a chance to even speak to me because I wouldn't be in this mess should I have approached this matter differently.