Terrible Customer Service!!!!!

I bought a Yoco device online about 2 weeks ago. I have decided that I no longer want the device because my bank has offered me a similar device with much lower merchant service fees, and so I called the company to arrange for it to be returned to them. I have to date, phoned in 3 times and a lady by the name of LEBO has been promising to get a consultant to call me back. I first called on Thursday the 7th Sep 2017, Friday the 8th Sep and again on Monday the 11th Sep 2017. I have a 30 day money back guarantee which will fall away on the 25th Sep 2017. I'm not impressed with the bad customer service and the empty promises received from LEBO. Please live up to promises and get someone to call me back, I want to return your device.