Poor Service from Capitec Bank

I have accidentally paid money into a Absa bond account, phoned Capitec Bank call centre to reverse the transaction got told your request have been logged (***3) it will take 7 to 14 days for a answer. Well its now been 18 days did a follow up "sorry sir we still waiting for a decision from absa" I ask the agent please cant you do a follow up the answer was NO sorry it takes 7 to 14 days or longer. Hell I left the previous bank because of there poor service. The money that was paid over belongs to me I do not owe any one that money I just want my money back.