Please Help

I purchased a Macbook Pro 3 months a go and the keys are causing issues. I have spoken to other people and checked the net and this seems to be a known issue.

I have gone to Tygervalley and the person who is in charge of this was not there. I left my contact details and I have received no call back. I called this morning and the person ensures me he gave my details to her and said he would give the phone to her now. I was then disconnected.

It is becoming a real issue now to work because the space bar is working sporadically. Can someone please let me know what my options are here because I cannot be without my laptop and I need a functioning one too.