INSTALATION ISSUE

I did an application on the 6th of January for a land line through the call centre and the staff member did not update any of my details, I called the call centre few times after a week and they kept saying our systems are OFFLINE CALL BACK IN AN HOUR, finally when a get through they tell me you order has been cancelled due to non payment of deposit which I never receive any feedback as my details was not updated, then did an application again and all details were updated I made the payment for the deposit an on the 7th of May openserv sent a technician to my place he saw what was to be done an told me that he has to test under ground cables and my order was put under a different area and he will come back the same day. they sent me an sms saying my order is receiving the attention an up till today no one has come, I called the call centre on Monday and they told me they would escalate but still nothing, YOUR SERVICE IS REALLY BAD PLEASE SORT OUT MY LINE NOW AS I AM TIRED OF WAITING.