motor warrantee extension/unable to get hold of Thorp Plumstead

I have been calling Thorp Daily for the past few days, not for any problems I have, not for any thing other than wanting to extended my motor warrantee. It really seems like mission impossible to get someone to help me with it. Not sure how much money I spent on air time daily since last week to just try and speak to someone. Every time I call, they say they will transfer me to someone and I will wait until the call just ends. Sometime it even says this number is not valid. I was even told by one of the people that they will get someone to call me last week, still waiting...… I dont understand what so difficult about speak with someone and someone taking ownership to ensure I was called back and helped. Seems like Thorp Plumstead needs some training on customer service, how to earn a customers trust and be customer obsessed , no ownership here even it is a sale. So disappoint, when i bought the car i had amazing service, never thought I would experience this trying to buy something again.