Call centre Hung up after calling me

CellC call centre contacts me to offer an upgrade. After 10 mins spent with 2 agents trying to explain the benefits on offer, I summarise the package on offer as follows. Everything will stay exactly the same (monthly charge, package benefits) with the exception of out of bundle data cost, which I don't use. In this time I have been unceremoniously handed off to another agent, requiring me to repeat the process of explaining my package and so forth. They then decide to simply hang up. That's just plain rude and unnecessary, especially when they have contacted me and wasted my time. I didn't yell or shout or question anyone's' paternity. I at least expect the same from your staff<br> Carlos Marquez