dissatisfactory service whilst paying for a phone

I am having an account with fonechoice which I am paying every month without fail. The tablet outlet could not charge for the second time and I sent it to them in October 2015 (if I am not mistaken) Nobody seems to worry about updating me of the progress relating to the phone. Contrary and to my dismay I constantly receive phone calls selling to me their products which then translates to me that I am one of their best customers, but nobody cares if I pay for what I do not have and use. I feel they are insensitive and that all they want is my money not the service that I deserve. Please help me as I am despondent without a phone but keeping on paying.