Media 24 losing a 25 year subscriber through incompetence.

I seriously wonder about Media24. I call in to renew a subscription, which I have renewed for the last 25 years. I get routed to an electronic data capture system and I go through the process of entering my data, which is tedious. I speak with the operator and I am told if there are any problems, she will contact me the following day. However as this doesn't happen, I assume it is all fine. The I get called again, there was some problem with loading my data and can I do this again. (This all happens on the cell-phone). The operator said she will call me in the morning and put me through to the extension which will take my data. I am offered the option of Amex or Visa/mastercard. I select Amex and enter my details again. Then a few days later I get called again, the data wasn't captured, can I do it again. I said no, this is getting ridiculous. I ask to be given a secure website address where I can enter the data on the website. No I am told this is not possible. I also offer to give my data to the operator, and I am told this is also not possible. It a,azes me that just about every internet based transaction I make is done by entering my details into a secure web portal. I ask for someone in management to contact me. I got called again today, they are having trouble with Amex cards and can I enter my data again using a different card. This time I refuse, it is a ridiculous scenario when a company cannot get it's act together and provide a simple solution for a customer to order a product I also alerted the editor and let the magazine in question know that a subscriber of 25 years duration is about to cancel due to the company's incompetence. The fact that they cannot offer me a credit card facility on their website is pathetic.