Suspected internal *****

Have logged a ***** case with the ***** department as my credit card had unathourised transactions. Call was logged on 24 February they promised to call me back within 7 days with feedback till today 5 March they did not bother to call back. When l call then they say they do not see any feedback l must call (0800) 333-058, have been holding for 45 minutes. My credit was used beyond the maximum limit set for the card by *****sters, l believe it’s internal ***** within the back, l need that card brought back to its original amount, l don’t order food and have never orders food via Uber eats