Cool Ideas...with frozen service

I registered with Cool Ideas to get Fibre installed at my home. All very easy initially, they contacts me straight away with reference numbers and they then got in touch with Openserve to come and install the fibre. Great ! That was until Open serve came to install the fibre, I was very clear to the contractor who arrived that I don't own the property so the fitment under no circumstances must cause any damage or be visible. I was assured that it would be totally invisible and no one would know. What ******* ! They have drilled a hole through a wall and not plastered or tried to neaten the damage, they have drilled a white pipe onto the outside of the wall because they said they couldn't go through the existing fibre pipe. They have smashed bricks and now I can't get hold of anyone, either at Openserve or Cool Ideas who can assist me in either removing the mess totally or getting someone to fix it. My emails to Cool Ideas are being ignored, I have sent them photos and follow up emails and phone calls. When I get through to someone I am told they will call me back with feedback from Openserve but I am still waiting. To say I am furious is an understatement. It is true, you get what you pay for, don't go the cheap route. I should have rather paid the extra per month and gone with a reputable company.