Unprofessional and wasting peoples time!!

I received a call from Edgars this morning and just to clarify that my account is paid every month, it may not be on the payday but within the month. Today I got a miscall from an anonymous number and thereafter they called my employer? I find this absolutely unprofessional and a waste of time, why don't this call centre staff call those that do not EVER pay their accounts instead of those that do. It is an absolute nightmare to have an Edgars account because they will harass you and are not accommodating even though you are a religious payer and might be a few days late. I am utterly disgusted that these guys contact my employer and paint a bad image of me. it is really appalling!!!!!