specialty answering service overbilling for calls king of prussia, Pennsylvania

This company has charged for calls that were never received or answered to the tune of 100s of calls per week.  We had the telephone monitored by staff to monitor to see what was going on and we would receive approximately 6-10 calls and we were charged for approximately 20 or 30.  We fired the company after several complaints and told them we had the calls monitored.  We are fighting this with the credit card company after they ran the credit card on file through without our permission for the last "trumped up bill that they had"  We have noticed that there are other Rip Off Reports on this company and people should be aware of their unethical tactics.  This company also stated that the calls were coming through in the middle of the night (early morning hours) that is outrageous since we offer services that would be exempt from those off hour calls.  Beware of this company!!