False advertising and no service delivery

Opened advertised a 24 month contract with monthly capped data of 25G, and if signed up before end of Nov '17 an additional 25Gb for 12 months. They also advertised no throttling of data. I signed up before end of Nov and then waited for the router which was out of stock. The router arrived early Dec. To my surprise the data cap was reached and the router blocked. I enquired about this as I should have an additional 25Gb, they confirmed same and opened the port again. Jan, Feb the same happened. Endless mails been sent to get this sorted. March month, no surprise as the same thing happened. At a stage they blamed their service provider named Rain and switched me over to a different service provider, then the throttling started. Downloading and general Internet access became problematic. In March the cap was reached again, same story but this time no joy. I suggested they get this sorted or else we have to part ways as they are in breach of their contract. At this time, they still have not delivered on my additional 25Gb for March, the router is still blocked and just to put the cherry on top, the still processed the morning they debit order for Apr, but no data. They do not respond to any email correspondence anymore and reaching them via their contact number only ends up on automated voicemail.