Poor Service Vodacom Key West

Vodacom Key West very unprofessional, quick when you to pay but poor to assistance. I am teying to cancel a wifi router (which I never wanted or used) that is combined with my phone. I only got a paper with a number writren on and that number cannot cancel my wifi but they continue woth the contract. Now I am going to reverse the payment and then they will jump cause I am going to another service provider