*********** and Rude Staff! Incorrect procedure carried out!

Went to Mr Price Queensburgh in June to close my account a day after it was opened as i didn't need it. Approached the cashier and told her i want to close my account. She said ok and did something on the computer and told me it will be closed in a few days time. I asked if i will need to pay any fees, she said no because it was only a day later. Then i did a credit check last week (16.10.17) to find that my MRP account is still active and is in arrears. Went back MRP Queensburgh on Sunday (22.10.17) and spoke to the manager, explained the situation and asked if she can help. She then told me that the procedure i went through before was wrong and there's a form i need to fill. So i said ok lets fill it as i just want to close this account. She brought a form and started filling it in. So while she's filling it in i asked if she needs my MRP account number, she then starts shouting at me while the store is busy saying, "I am the store manager! I know my job! This is why your account wasn't closed! You didn't do it right!". So i said i just asked if you need my account number otherwise how else will you know which account to close and the form requires it. She then says, "Can i have your card". Firstly my credit status has a negative due to the *********** staff of this branch. Secondly i had to pay a fee of R50.91 because the incorrect procedure was conducted. Thirdly after all of this the MANAGER of the store decides to shout at me and is completely rude! Is this the kind of staff MRP employs? Is this the way MRP treats their loyal customers? Is this the kind of errors that is taught to MRP staff during training? Should a person with an attitude like this be a manager of a store and a leader to the staff of the branch?