No coverage

I ordered uncapped home LTE, upon through researching asking around in my area the signal is very poor. I was advised during online sale by Slindile that home LTE is available in my area, despite my map showing otherwise. Tried to cancel through call centre but couldn’t get through since I only have account number Account Number : CA*** and Billing Account Number : BA***.please cancel this account, I have not received your device and sim as yet please have it canceled before sending the courier.