Bad customer service

Good day, this company made a lot of promises and now I don't hear from them, I paid the amount to clear my dept as they said and it's been almost 3 months and I don't hear from them. They said I'll get my clearance certificate when I did my final payment on the amount to clear me and that was February, then they said 2 months and now it's the 24 may so that 3 months since I paid them and now they don't answer my mails, I was at a nother dept company and now I regret leaving as dept busters always kept me up to date and always responded.