No connection, No assistance

i am a customer of rain as of 1st October, in the 10th of October till the 13th i did not have internet access. i was called by a consultant regarding a ticket i had logged on the 1st regarding activation. i explained i have not had internet since the 10th. i was sent a email explaining to change from SA to NSA, which i did and it did not work. i emailed a response and told to change my APN. i checked the website and followed the steps to change the APN and changed it to Rain. i am now receiving a APN error notification and still no response on email regarding the APN change. my service is now working 5 minutes at a time every 2 hours when the APN is set to internet and not rain