Stay Away from NDA!

I sent my debit order mandate form for change of banking details on the 9th of January 2019, I get paid on the 25th if each month and it came to my surprise that Hyphen PDA couldn’t get money because they requested from an old account. I have been trying to get ahold of NDA but their lines aren't going through which is making things difficult for us to make arrangements. ********** 899 this is the number they provided on the SMS they sent to let us know that they are available on that Number,!but the number is going straight to Voicemail! I’m so irritated and feel that I need to report this to the NCR as well because we are not treated fairly and with respect. I want to terminate my services immediately with no excuses. I need my clearance certificate and I’ll find another company that will help me with urgence.