Fnb is giving me grief with poor customer service

I'm 51 years old female, Lumka Ndawo and I deposited 2800 by a to cell from my fnb easy account which I was not aware is only for fnb to fnb clients and my friend is a capitec client, I contacted fnb they told me that the money went to the client account that he had more than a year ago, my friend says I must instruct fnb to reverse the funds as it was a mistake deposit, I spent the whole day of the 24th on the phone with fnb till I ran out of airtime and I decided to go on their whatsapp and that was a worce nightmare as I was tossed around by 3 different consultants till I gave up, till now I have not heard from fnb and I need to buy food with the money. Contact me *** Email ***.