POOR SERVICE

In December i changed my bank acc, and informed Cartrack of which the Guy assisting me was Thapelo Tshilwa, he updated my current banking details, and confirmed on email, 31st December debit order went through, i kept receiving calls from this no:*** that my account was behind, i called this no:***, of which i spoke to Carmen and she said she will investigate, she kept ignoring my calls, up to today i spoke to Sanele of which when i requested my statement he send me other client statement, how ***********, every time i call the accounts its either they busy or on lunch,