False Advertising - No customer service

I received a call from Metrofibre on the 22nd of April to sign up after viewing their website that advertise still today R649 for 75mbps, received my first invoice from them R749, after about 5 emails they finally rep**** and said that was a special that ended in February, I mentioned to them that I received the call in April and that was the price they said and they just rep**** with sorry for the inconvenience but you will pay R749, but we will give the best service going forward. This is false advertising as it still shows on their website. I sent 2 emails to their complaints department, and no reply up until today. I sent my cancellation email Wednesday morning. Wednesday night my internet is completely down, then received a email from their cancelation department that says I will have service until the 31st of May, yet no internet at home, then they have the nerve to say they value their customers and hope I come back one day. Please think twice before signing up with them, they are very quick to sign you up but when you are unhappy with their service their is no person willing to come back to you.