I'm 95% sure use did not use a heat gun or hair drier, no soapy water or soft cloth. Bat can not nor should not take any blame for a piss poor install.
I'm sorry but it makes me sick when I see these go so wrong when its really very simple with the right tools.
You must have on hand with any vinyl install:
spray bottle full of water with about two drops or dish soap or baby shampoo
hair dryer or heat gun (to shape the vinyl on the curves)
With all these tools used right your install will look tip top with little to no need for cutting. Also you should have no bubbles or other blemishes of any type.