Problem wiith DSL and no support

I signed up for o2 dsl one about 1 month ago

They told me I can use my line from 17th of January

But Its not working

I called hotline for about 100 times but there is NO ENGLISH support (they say there is but reaching them is like mession impossible:-D).

I sent a cancellation request to 01805880088 but no response

I sent many messages here, but no help

 

I have no idea what should I do

I feel like I'm abused

I should pay 40 euros per month for NOTHING and wait for hours on hotline which mostly disconnects me while doing process.