Refund not yet received. - Consumer Complaint for Converge ICT Solutions Inc.

Where can I file an official complaint against the internet provider Converge ICT Support? It's been three freaking months since I asked for an installation but they still did not put it in place. I've been calling them every single day I feel like I'm begging for my money, I already asked them to completely cancel the plan. I was promised to get my refund on May 22 but for some reason they still could not do it. I don't know what kind of game they are up to but I'm pretty sure I'm not gonna buy it, cause this is a little bit upsetting. So where na nga kasi? I just want my money back.