Waiting on a call, custom service

Once again another fail from this company. Everytime they call you, they drop the line and this is something to do with the staff sitting in that call center making outbound calls. ****ing lazy!!!! How tf cant this company pick up what their staff are doing they driving down this business. Every single time I'm waiting on a call from old mutual, you answer and then they immediately drop the line. This has been an ongoing thing. This business must really investigate their people because this God damn ridiculous that their complaints office should do the entire business work.