cant acess network

Hi There <br> <br> I have a contract with Autopage and is currently in arrears, i made arrangements with them to settle my account. my contract expired on the 31 Oct 2015 and i was using my prepaid sim card since my phone was suspended in June, on Sunday the 01 nOV 2015 the phone started to lose network (no signal at all) tried different sim card, mtn,vodacom and still no signal, i phoned them to check if they blocked my phone and they dont wanna say they only mentioning the sim that they blocked.<br> <br> I did my own troubleshooting to check if the problem is the phone or not and when i remove the sim card it displays the sim card icon that there is no sim card when putting it back the signal bar is empty and displays no signal.<br> <br> hope this get resolved as i am relying on this phone<br>