Product: Checking or savings account

On Tuesday XX/XX/XXXX, I opened a 360 Checking account at Capital One Bank ( see attached email ). Excitedly, I went to the ATM and deposited my checks totaling {$3000.00} which I received from my employer XXXX XXXX XXXX. 
Later that day on XX/XX/XXXX I got an email from Capital One Bank stating that they restricted my account until they can verify my recent account activity ( see attached email ). 
So the Next morning I called Capital One and they transferred me to the Customer Protection Resolution team and I asked why they froze my account, Capital One Rep answered " your account is under investigation, we can't give you any details until the investigation is verified ''. I went down to the bank several times and I kept calling and asking for any updates. They kept saying " your account is under investigation, we can't give you any details until investigations are verified '', so i asked if i can have my employer verify the checks but there was no one to talk to. ( BTW the checks I deposited were written out to my name and were good checks because when I opened an account with a different bank there was NO problem with my other checks. ) I kept getting statements from the bank ( see attached ), when I got my XX/XX/XXXX statement, it stated that I have {$3.00} ( is the interest amount ) in my account and {$3000.00} was withdrawn from my account on XX/XX/XXXX ( see attached statement ). Hysterically I called Capital One Bank, questioning the above explained action, they told me that Capital One is closing my account and sending me the check with money. After a couple of business days, I got a check but to my surprise the check was in the amount of {$3.00}. 
Therefore, I called them AGAIN and they told me that the {$3000.00} was returned to the payee 's account. 
I contacted my employer and explained the situation and asked if they could check to see if they got the money. They checked and came back with Negative response, not seeing the funds. Again we reached out to Capital One telling them that my employer is not seeing the funds, after a lot of back and forths they clarified to me that it might still be in XXXXXXXX XXXX, the bank which my employer banks with. So I asked them for proof and how my employer can request it from XXXX XXXX so they explained to me that they can't give me proof from the Transaction but with the date which was returned and the amount, XXXX XXXX will find the funds and return it, which sounded a little interesting. 

Afterwards, I gave the information to my employer and my employer asked me for a trace or confirmation number, which they can request the money from their bank. Therefore I called, called and called tons of times to get a confirmation or trace number, Capital one Denied my request over and over again and I could not get a confirmation or trace number that proved that Capital One Bank Reimburse the funds back to XXXX XXXX, something was not adding up.Thus, with no other choice I went down to the Capital One branch to get the information needed. 
The manager at the bank listened to our request and checked in the system my account information and seeing the case she called the Customer Protection Resolution team to get the proof ( confirmation or trace number ) that Capital One bank Reburst the funds to XXXXXXXX XXXX, again with the same nonsense they said the money left Capital One bank and went into XXXXXXXX XXXX and can't give proof.I left the bank gaining nothing and just wasted time. 

My employer is very nice. She went down to the XXXX XXXX and told them the story and gave the amount, date officially refunded my money and she showed the statement which is the only document I had to prove in this case. XXXXXXXX XXXX told her that they don't see any funds and they made her aware that on the statement it states that there was withdrawal ( i did not have access to withdraw it because of the investigation ) normally in such a case it should say Reimburse ( see attached ) .I believe that Capital One Bank withdrew the money from my account into their pockets and just covered it up with all types of ways and nonsense reasoning. 
Capital One claims they returned the money back to the payee 's bank so XXXX XXXX states that they never got the funds. Where is my money? Something is off here. please if you can help me get this resolved. 

I Greatly appreciated for giving me a place to voice my story and hope to see MY hard earned money back. 
Thank you from XXXX.