Bad service at Absa The Reds Mall and Montana Absa Bank

On the 22nd of December 2018 i realized that there was a company that i once bought something online and they keep on deducting more money from my bank account even after my purchase, then i rushed to the nearest bank from my workplace which is The Reds Mall. I then asked them to reverse my money and stop the company to stop deducting money from my account, they told me that they cannot reverse it as it shows on my bank statement that it is a purchase and they also made me another card which they said it will stop the company from deducting, and the next day 23rd as i was preparing to go on a holiday with my family i got a notification showing that the company deducted more money from my account. I then decided to write an email to ABSA ***** and they never responded. i decided to go to Montana ABSA bank and the told me that i should have changed my account instead of doing another card which they charged for doing that. They then changed my account number also changed my savings account in to cheque account as i requested. On my way to our holiday destination i decided to buy some snacks and my card was declined and i spend the whole holidays being unable to withdraw my money only because the did not activate my card, i had to fix it when i came back on the 3rd of January. i am just soooo disappointed with absa as it never gave me a problem since i started using as a student. but now i am m just enough with it.... now i cant even get bank notifications or even buy airtime/data