frozen account for no reason

my name is abiodun nafiat alagbe fnb is full of **** and they are professional *****, my account was frozen on the 10th of may 2019, i went to the branch to ask for the reason why my account was frozen they said to me they received a signal from money gram and it was a ***** , i was so shocked i called the person who sent me the money why will u send money to me and go back to money gram to lodge a complain when u intentionally sent me a money because he bought a camera from me, his name his ali flouli mohamed from Egypt, he was so amazed he said he never go to money gram to lodge any complaint why will he do that! i was so shocked, i didn't believe him because of what i heard from fnb i angrily said to Ali( the sender) i will send you your money back i hate this ******* he said to me believe me i didn't lodge any complaint why will i do that, i went back to fnb can u please send the money back which is R4280 and release my account if that is the solution i hate ***** and i will never participate with ***** things. it was person of vanderwesthuizen who is in charge of my case the guy his so rude telling me no!. when i called Ali this thing is getting out of hands he said to me called money gram if truly i lodge any complaint, i called money gram and behold! money gram said to me there no complaint regarding that transaction ,then why will fnb create such a big lie? and freeze my acct i dont know what to do can hello peter please help me and save me from professional ******* fnb stylishly want to embezzle my money i even said to them send the money back if that is the solution because am frustrated i have no money to pay house rent and do my stuff is all frozen. vanderwesthuizen is in charge of my acct here is the reference that was given to me ********** 0. money gram said to me go to your bank and sort out your issue we didn't send any signal and Ali has been swearing to say he never lodge complaint .The invoice of the Ali used to send me the money i still have it incase you need it. tell them to please release my account they must stop being professional in *****ing my money. i expect fnb to protect their client not to ***** client money stylishly