Poor Service after MTN Tele sales Upgrade

I have had my Cell Phone account with MTN since 1998. Unfortunately I can not recommend MTN as a Cell Phone provider due to Poor Service I have received. As a loyal customer, I am extremely disappointed about the service I have received from MTN as from September 2021 till to date. Never experienced this poor service from MTN before. My existing contract was due for an upgrade and reached the end of its period. MTN Sales Department (believe it has been outsourced to Mondo) contacted me over the phone to try to convince me to upgrade my contract with MTN, their selling point is that my existing package no longer been supported by MTN. Note, I didn't request for an upgrade and was happy with my existing package (even if it was pay as you go). A few days later MTN shared the electronic version of the verbal agreement. I was not at all impressed with the document. The document didn't provide the necessary information about my new upgraded contract and to add to it almost all my personal details were incorrect. I have responded to MTN Customer Care to indicate to them that the information is incorrect and needs to be corrected. They only responded back and instructed me to complete a Debit Order Banking Form - that was not the issue. I have responded back that my Personal Details need to be corrected and I need the Monthly Debit Order to be cancelled as from November 2021. I prefer to do electronic transfers like what I do with all my other accounts. MTN refused to adhere to my written requests. A week later I received a Statement for a new upgraded contract with a Pro Rata fee for the month. I didn't agree to this and again questioned this because the Sales Agent didn't tell me that there will be a Pro Rate fee charged to me. And according to me I didn't agree to the upgraded contract as yet and still question the information that has been shared to me. I raised this as another topic with Customer Care and still didn't receive any assistance to address my issue that I could agree to. A week later I realized that I can not SMS because MTN already upgraded my package that doesn't have an SMS bundle. Again I was not aware what the package includes because the Electronic document that they shared with me didn't include the package details. After a very difficult search on MTN website, I found the details of the package that MTN tried to sell me. That package didn't meet my needs, and again I tried again to reach out to Customer Care - without any positive results. Customer Care informed me that I need to contact a number (Sales). Dialing the number I couldn't get hold of anybody to assist me. Again requested Customer Care that someone from MTN need to contact me to address my issues. I only received one missed phone call from an unknown number before 9:00am yesterday 2 November, that I unfortunately missed due the fact that I was not close to my phone to answer. Till today I can only assume that was the Sales Department. Customer Care sent me an email to inform me that their Sales Agent tried to contact but couldn't get hold of me. I have responded to contact me again and also to confirm the number I have received if that is the Sales Department. No response from Customer Care or their Sales Department. Today, 3 November 2021, the Debit Order for MTN went through after I did request them to cancel the Debit Order. I had to instruct my Bank to enforce a Stop Order. In summary: MTN Customer Care and their Sales Department refused to assist me with my issues on the upgraded package. I have reviewed the electronic paper work they have shared with me, I didn't agree with the information. I have informed them via email and contacted them over the phone. MTN opens query numbers and immediately closes the number without addressing my concerns and queries. I am not satisfied with the upgraded package that they tried to sell to me and MTN withheld the package details from me. MTN was not keen to assist me with my concerns and queries; and continued with the upgrade of the package.