Telkom WILL take you for a ride!!!

Telkom you can't increase my subscription fee if I signed up for a 24 month contract!!!!!! There is no customer service at all if you contact Telkom via the mobile app. This is unacceptable. You are overcharging me for the past 2 months. This problem started 3 months after I got the contract with Telkom???? You reimbursed me in October after a previous request in regards to the same query and now I just got "it was on your August invoice" and then they dropped the line!!!!! And I am paying for a 10mbps line but it never goes beyond 7mbps......the normal speed is between 4 and 7mbps and this is not what I've signed up for!!!!! This is ridiculous and more. You are exploiting your landline customers and if that is the case I will cancel my subscription/contract, since you are allowed to change the terms and conditions as you are pleased, and move over to another service provider. This is pathetic!!!!!!!!!!!