Years of ****py service - I'm leaving!

Dear MTN, I've been a loyal subscriber for many, many years - in fact, probably nearing decades. My years with you have been fraught with poor service which I have forgiven many times over but my latest experience with you, and in particular, MTN Waterstone in Somerset West is the final straw. Since the end of January 2018 I have been attempting to take out a data contract - it's been an experience marred with a total lack of communication from MTN/MTN staff, a 'couldn't care less' attitude which by now has proven that this is just how it is at MTN. It's no longer a case of one or two employees. Even management seems unable to take ownership, resolve issues or even, simply, apologise. Staff attitude is lazy, lacking any interest in the customer. I give up. Luckily, I am at a point in my mobile contract that I am able to leave MTN and join your competitor. You will lose my mobile contract and a new data contract that I will open with your competitor. I am but one person and frankly I haven't typed this for a response. I am no longer interested in remaining a client of MTN. Years of appalling service have driven me away. You really do suck.