Useless Bank Servicrs

I wanted to close my mother's credit card account. I phoned the bank they said I have to bring her in. So I did. She is in a wheelchair and she cannot speak properly. There was no assitance. I had to struggle to get the wheelchair through the single security doors. We sat there waiting for more than half an hour. Got to the teller and they tell me I need to.pay the money into the credit card account then phone the call centre. The teller phoned the call centre and they said I can phone in the next day to close the account. Then today I phone and they tell me I need to take my mother to the branch. I had to take leave from work to get this done and it is a huge struggle with my mother in the wheelchair. All answer I get is they cannot help me. This is so rediculous. I just want to close the account. I do not want to open an account. I paid the money. Why is this so difficult