We are an IT company providing services such as VoIP. RingCentral is our preferred VoIP service, they are great but I am about to switch to another provider ver

We are an IT company providing services such as VoIP. RingCentral is our preferred VoIP service, they are great but I am about to switch to another provider very soon unless they stop calling me with their Filipino call centers asking for super long calls. I can't even hang up they are extremely aggressive. I told them nearly 20 times not to call me, I know their services, and I can call them if help is needed. No, they must have a call and must find a time. If anyone is reading from RingCentral: you are seriously pushing your customers away with these shitty calls. Just stop harassing your own customers.