Bad service

Good afternoon I'm not pleased with FNB and their service my account was frozen last year and I've been trying to be in contact with the ***** department but their operatives handling my case seem to be continuously changing and when ever I can a new operative answers and says they will get back to me I came and lodged a complaint here 3 weeks ago and they responded same time and promised to have given me feed back in 24 to 48 hours but until now no feed back has been given my complaint has dragged more than 6 months now .