Non existent service !!

I have written several emails to Justin & Porting email address at Digico Telecoms on 8 July, 10 July and 22 July and nobody has had the decency to respond to me. My Neotel number has now been disconnected and I have been waiting for a response to see what to do next - nobody can get hold of me due to my number not in service anymore - Can somebody please give me a call or respond to my emails. I have also tried calling their call centre - I get the same message all the time - too many calls and cannot take my call now - please try later? Seriously ? how many call centre operators do they have? one only ? I also logged a call me back request on their website - also no response from that - really horrible, slack service !!!