STAY AWAY CUSTOMER SERVICE IS EXTREMELY BAD

I received my modem last month and according to them my 1st installment is suppose to go off the 1st of every month when it did not happen and we already were on the 3rd or 4th i decided to do a eft to them so i dont get a failed payment on my itc. the night after that the account wnet of my bank all fine no problem i phoned them up to see if my other payment had been received and thus im suppose to be in a credit. after numerious calls emails still today that is 18th already no response or whats happening or even if my payment has been received on numerious calls from ome agent to another and promises they will check and call back no response. This is the upmost badest service i recoment nobody to use this service. STAY AWAY CUSTOMER SERVICE IS BAD