No salary reflecting after using their salary switch letter!!

We have been having a good relationship all along, everytime I apply online it has never been a problem.

I app**** for overdraft, it was approved, I even have contracts, you even sent a salary switch letter, I continued to switch my salary.

Now I'm being told details on that letter are wrong, is not for main savings account but the overdraft, since the 25,i have waiting for my salary, even now, even my employer is asking what's going on. Huu I can't wait to switch back, please find my money!!

Why did it not bounce back to my employer if that account number is wrong?! No I want my salary?!